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A chronological timeline of the Halo universe.

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LegendBirthhttp://www.reddit.com/r/halo

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Deathhttp://www.reddit.com/r/HaloStory

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Glassinghttp://www.reddit.com/u/afterbang

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Non-Canon Content

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Alternate Reality

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Real World Event

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Discontinuity

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YearMonthDayEventHalopedia Page (if applicable)Information OriginNotes

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500,000,000 BCEN/AN/AThe Precursors accumulated their total knowledge in a vast reserve of rules and a library of experiences.Halo: Silentium page 208"During our debate, the Gravemind hinted at a vast reserve of rules accumulated more than half a billion years ago, a huge library of experiences and disputed codified into the total wisdom of the Precursors."

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10,100,000 BCEN/AN/AApproximate time Forerunners first explored Path Kethona.http://www.halopedia.org/Path_KethonaHalo: Silentium page 58

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10,100,000 BCEN/AN/AApproximate time the Forerunner-Precursor war takes place.http://www.halopedia.org/Forerunner-Precursor_warHalo: Silentium page 181

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9,100,000BCEN/AN/AApproximate time the Primordial arrived in the galaxy.Halo: Silentium page 173"The one the Didact questioned on Charum Hakkor arrived on the margins of our galaxy nine million years before."

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1,100,000 BCEN/AN/AApproximate time Boundless passed away.http://www.halopedia.org/Boundless_(Forerunner)Halo: Silentium page 67

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1,100,000 BCEN/AN/AApproximate time the Theoretical rate was forcibly merged with the Builder rate.Halo: Silentium page 67"Soon after her death, her rate had been forcibly merged with the Builders.

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600,000 BCEN/AN/AApproximate time a Forerunner civil war takes place.Halo: Silentium page 104"During one of our interminable civil wars, half a million years before my birth..."

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150,000 BCEN/AN/AForerunners rise as the prominent species in the galaxy by advancing technological discoveries gathered from the remnants left by the Precursors.Halo Encyclopedia

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150,000 BCEN/AN/AApproximate time ancient humanity began to spread their civilization outward along the galactic arm.Halo: Cryptum page 20

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125,000 BCEN/AN/AApproximate time of the construction of the Forerunner capital.http://www.halopedia.org/CapitalHalo: Cryptum page 296

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110,040 BCEN/AN/AApproximate time of the discovery of The Timeless One.http://www.halopedia.org/The_Timeless_OneHalo: Primordium page 236"Forty years before the last of the Human-Forerunner wars..."

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110,000 BCEN/AN/AApproximate time the Didact spoke to the Primordial.Halo: Cryptum page 342

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110,000 BCEN/AN/AApproximate time of the discovery of the Flood powder.Halo: Cryptum page 268

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110,000 BCEN/AN/AApproximate time the Flood left the galaxy.Halo: Cryptum page 272

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110,000 BCEN/AN/AApproximate time of the beginning of the Human-Forerunner war.http://www.halopedia.org/Human-Forerunner_warHalo: Cryptum page 25

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109,000 BCEN/AN/AApproximate time the Librarian is given the title Lifeshaper.Halo: Silentium page 31"That title came to me just before I walked among the defeated humans at Charum Hakkor."

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109,000 BCEN/AN/AApproximate time of the end of the Human-Forerunner war.Halo: Cryptum page 25

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109,000 BCEN/AN/AApproximate time the Librarian established a research station on Erde-Tyrene.Halo: Cryptum page 17

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106,000 BCEN/AN/AApproximate time Bornstellar's parents are born.Halo: Cryptum page 225

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102,000 BCEN/AN/AApproximate time Maker of Moons is born.Halo: Silentium page 91"Maker was less than two thousand years old."

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101,200 BCEN/AN/AApproximate time the Confirmer began his watch over the San 'Shyuum quarantine system.Halo: Cryptum page 171

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101,100 BCEN/AN/AApproximate time the Librarian discovered a hard copy of Boundless`s studies preserved on Keth Sidon.Halo: Silentium page 67"A century before the Didact entered his Cryptum..."

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101,000 BCEN/AN/AApproximate time the Didact was found in comtempt of the council and ordered to halt the construction of his shield worlds.Halo: Silentium page 47

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101,000 BCEN/AN/AApproximate time the Didact entered a cryptum and was hidden on Erde-Tyrene.Halo: Cryptum page 81

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101,000 BCEN/AN/AApproximate time the original 12 Halos were created.Halo: Primordium page 217

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100,970BCEN/AN/AApproximate time the construction of Audacity is started.http://www.halopedia.org/AudacityHalo: Silentium page 60The construction took ten years. Permission from the Old Council to make the journey took another ten.

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100,960BCEN/AN/AApproximate time the construction of Audacity is completed.Halo: Silentium page 60The construction took ten years. Permission from the Old Council to make the journey took another ten.

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100,950BCEN/AN/AApproximate time the Old Council grants the Librarian permission to make a journey to Path Kethona.Halo: Silentium page 60The construction took ten years. Permission from the Old Council to make the journey took another ten.

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100,950 BCEN/AN/AApproximate time the Librarian visited Path Kethona.http://www.halopedia.org/Path_KethonaHalo: Silentium page 163"After she put you in a Cryptum, and stored the Cryptum on Erde-Tyrene, she commissioned a special ship, assembled a crew, and made a visit to Path Kethona. This was about nine hundred and fifty years ago."

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100,950 BCEN/AN/AApproximate time the Librarian discovers a biological Domain on a planet in Path Kethona.Halo: Silentium page 158

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100,717 BCEN/AN/AApproximate date Soma is born.Halo: Evolutions "Soma the Painter"

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100,300 BCEN/AN/AApproximate time of first contact between the Forerunner Primary Pioneer group and the Flood on G617 g1.http://www.halopedia.org/Primary_Pioneer_GroupHalo 3 Terminals (2)

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100,300 BCEN/AN/ASoma the painter sends a message to the Auditor and Prelate regarding the first landing of the Flood.Halo: Evolutions "Soma the Painter"

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100,200 BCEN/AN/AApproximate time Riser is born.Halo: Cryptum page 35

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100,043 BCEN/AN/AApproximate time 05-032 Mendicant Bias tested Installation 07 at Charum Hakkor.Halo: Primordium page 191

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100,020 BCEN/AN/AApproximate time Splendid Dust of Ancient Suns is born.Halo: Cryptum page 268

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100,020 BCEN/AN/AApproximate time Glory of a Far Dawn is born.Halo: Cryptum page 309

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100,012 BCEN/AN/AApproximate time Bornstellar Makes Eternal Lasting is born.http://www.halopedia.org/IsoDidactHalo: Cryptum page 225

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100,010 BCEN/AN/AApproximate time Maker of Moons's father is assassinated.Halo: Silentium page 90"He died ten years ago," she said. "Assassinated at the orders of the Master Builder."

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100,000 BCEN/AN/AThe Librarian visits Janjur Qom to collect San 'Shyuum specimens for cataloging.http://www.halopedia.org/Janjur_QomHalo: Cryptum page 172

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100,000 BCEN/AN/ABornstellar Makes Eternal Lasting travels to Erde-Tyrene in search of the Organon.Halo: Cryptum page 17

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100,000 BCEN/AN/AThe Didact is released from his cryptum by Bornstellar.Halo: Cryptum page 63

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100,000 BCEN/AN/AThe Didact and Bornstellar discover the ruins on Charum Hakkor.Halo: Cryptum page 102

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100,000 BCEN/AN/ABornstellar undergoes a brevet mutation with the Didact as his sponsor.Halo: Cryptum page 154

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100,000 BCEN/AN/AThe First Prophet is killed by builder forces.Halo: Cryptum page 217

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100,000 BCEN/AN/ABornstellar is sent back to his family, the Didact is taken by the Master Builder, and Chakas and Riser are send to Installation 07.Halo: Cryptum page 218See Note 11.

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100,000 BCEN/AN/AA Halo is fired for the second time in the San 'Shyuum quarantine system.Halo: Cryptum page 275

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100,000 BCEN/AN/ABornstellar departs for the Capital to testify against the Master Builder.Halo: Cryptum page 25

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100,000 BCEN/AN/AThe Battle of the Capital occurs.http://www.halopedia.org/Battle_of_the_CapitalHalo: Cryptum page 312

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100,000 BCEN/AN/AA Halo is fired for the third time at the Forerunner capital world.Halo: Primordium page 272

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100,000 BCEN/AN/ABornstellar enters a portal from the Capital to the Ark.Halo: Cryptum page 322

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100,000 BCEN/AN/ABornstellar meets the Librarian on the Ark.Halo: Cryptum page 338

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100,000 BCEN/AN/AChakas, Vinnevra, and Gamelpar discover a gravemind on Installation 07.Halo: Primordium page 150

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100,000 BCEN/AN/AChakas is reunited with Riser.Halo: Primordium page 181

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100,000 BCEN/AN/AGamelpar passes away.Halo: Primordium page 207

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100,000 BCEN/AN/AThe IsoDidact tracks down the rogue Installation 07.Halo: Primordium page 337

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100,000 BCEN/AN/AInstallation 07 breaks down from 30,000km to 10,000km in diameter.Halo: Primordium page 345

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100,000 BCEN/AN/AChakas is composed and placed in a monitor shell.Halo: Primordium page 350

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100,000 BCEN/AN/AThe Bornstellar-Didact executes the Primordial.Halo: Primordium page 366

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100,000 BCEN/AN/AThe Librarian testifies before Catalog.Halo: Silentium page 30

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100,000 BCEN/AN/AThe Ur-Didact encounters a Precursor structure.Halo: Silentium page 95

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100,000 BCEN/AN/APrecursor structures begin to reawaken around the galaxy.Halo: Silentium page 187

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100,000 BCEN/AN/AThe Ur-Didact is corrupted by a Gravemind.Halo: Silentium page 226"I am myself mad!"

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100,000 BCEN/AN/AFaber rescues the Didact from a Burn.Halo: Silentium page 192

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100,000 BCEN/AN/AThe Ur-Didact reunites with Bornstellar, the IsoDidact.Halo: Silentium page 221

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100,000 BCEN/AN/AThe Ur-Didact uses the composer on the human populations on Omega Halo.Halo 4 Terminals

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100,000 BCEN/AN/AThe Precursor structures attempt to destroy the Greater Ark. Omega Halo fires, opening a lane for the IsoDidact to escape.Halo: Silentium page 272

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100,000 BCEN/AN/AApproximate date Faber is killed in action.Halo: Silentium page 275

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100,000 BCEN/AN/AThe Librarian places the Ur-Didact in a Cryptum on Requiem.Halo 4 Terminals

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100,000 BCEN/AN/AThe Halos are sent from the Lesser Ark to be spread throughout the galaxy.Halo: Silentium page 315

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100,000 BCEN/AN/AThe Librarian passes the title of Lifeshaper on to Chant-to-Green.Halo: Silentium page 318

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100,000 BCEN/AN/AThe Librarian begins construction of a portal from Earth to the Lesser Ark.Halo: Silentium page 324

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100,000 BCEN/AN/A05-032 Mendicant Bias assembles 4.8 million Flood controlled vessels and breaches the Maginot Sphere.Halo 3 Terminals

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100,000 BCEN/AN/AOffensive Bias engages Mendicant Bias.Halo 3 Terminals

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100,000 BCEN/AN/AThe Battle of the Maginot Sphere begins.http://www.halopedia.org/Battle_of_the_Maginot_SphereHalo 3 Terminals

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100,000 BCEN/AN/AThe IsoDidact fires the Halo array killing all sentient life within 3 galactic radii.Halo 3 Terminals

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100,000 BCEN/AN/AMinutes after the array is fired, Offensive Bias' fleet decimates Mendicant Bias' fleet.Halo 3 Terminals

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100,000 BCEN/AN/AThe Battle of the Maginot Sphere ends.http://www.halopedia.org/Battle_of_the_Maginot_SphereHalo 3 Terminals

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100,000 BCEN/AN/AReseeding of the galaxy begins.Halo 3 Terminals

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97,227 BCEMayN/AA report is sent to 2401 Penitent Tangent regarding Flood containment failure in a cold storage facility.http://www.halopedia.org/Cold_Storage#TransmissionsCold Storage transmissions

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57,448 BCEN/AN/AApproximate date that a meteor bearing a small Forerunner artifact crashes on the planet that will be known as Sigma Octanus IV.http://www.halopedia.org/Sigma_Octanus_IV_artifactHalo: The Fall of Reach page 233

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40,000 BCEN/AN/AApproximate date that an unidentified alien vessel crash-landed in Sector 1215 of Installation 04.http://www.halopedia.org/Unidentified_alien_vesselHalo: CEA Terminal 5

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2200 BCEN/AN/AApproximate date the San 'Shyuum become divided into two groups, the Stoics and the Reformists.Halo: Encyclopedia

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2200 BCEN/AN/AApproximate date the San 'Shyuum civil war begins.http://www.halopedia.org/San_%27Shyuum_Civil_WarHalo: Encyclopedia

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2100 BCEN/AN/AApproximate date the San 'Shyuum civil war ends.Halo: Encyclopedia

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2100 BCEN/AN/A1,000 Reformist San 'Shyuum enter the Forerunner dreadnought and flee their homeworld.Halo: Encyclopedia

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938 BCEN/AN/AThe San 'Shyuum encounter the Sangheili on Sanghelios.Halo: Encyclopedia

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938 BCEN/AN/AThe Sangheili-San 'Shyuum war begins.http://www.halopedia.org/Sangheili-San_%27Shyuum_WarHalo: Encyclopedia

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876 BCEN/AN/AThe Sangheili finally accept that they must adapt and study their Forerunner relics or face defeat at the hands of the San 'Shyuum.Halo: Contact Harvest page 147

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852 BCEN/AN/AThe Sangheili-San 'Shyuum war ends.Halo: Encyclopedia

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852 BCEN/AN/AThe Writ of Union is ratified.Halo: Encyclopedia

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784 BCEN/AN/AThe Lekgolo are discovered by, and incorporated into, the Covenant through the Taming of the Hunters.http://www.halopedia.org/Taming_of_the_HuntersHalo: Encyclopedia

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648 BCEN/AN/AThe San 'Shyuum homeworld of Janjur Qom is destroyed by a natural stellar collapse.Halo: Encyclopedia

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648 BCEN/AN/AThe Forerunner Dreadnought is made into the centerpiece of the new space station that will serve as the Covenant's capital, High Charity.Halo: Encyclopedia

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480 BCEN/AN/AThe Battle of Thermopylae takes place on Earth.http://en.wikipedia.org/wiki/Battle_of_Thermopylae

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1112N/AN/AThe Yanme'e are incorporated into the Covenant.http://www.halopedia.org/Yanme%27eHalo: Encyclopedia

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1342N/AN/AThe Kig-Yar are incorporated into the Covenant.http://www.halopedia.org/Kig-yarHalo: Encyclopedia

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1552N/AN/AThe San 'Shyuum began developing technologies aimed toward increasing their life spans.Halo Bestarium "San 'Shyuum"

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1945August6The first nuclear weapons are used in military conflict on Earth.http://en.wikipedia.org/wiki/Project_Manhattan#Bombings

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1945June26The United Nations is formed on Earth, precursor to the UNSC.http://en.wikipedia.org/wiki/United_nations

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1997N/AN/AMargaret Efendi starts her beekeeping hobby with a single beehive.i love bees

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2001November15Halo: Combat Evolved is released.http://www.halopedia.org/Halo:_Combat_Evolved

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2004N/AN/AA temporal rip in space-time somehow sends part of the UNSC Apocalypso’s AI, Melissa back to this year.i love bees

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2004November9Halo 2 is released.http://www.halopedia.org/Halo_2

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2007September25Halo 3 is released.http://www.halopedia.org/Halo_3

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2009March3Halo Wars is released.http://www.halopedia.org/Halo_wars

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2009September22Halo 3: ODST is released.http://www.halopedia.org/Halo_3_odst

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2010September14Halo: Reach is released.http://www.halopedia.org/Halo_reach

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2011November15Halo: Combat Evolved Anniversary is released.http://www.halopedia.org/Halo:_Combat_Evolved_Anniversary

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2012November6Halo 4 is released.http://www.halopedia.org/Halo_4

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2021N/AN/AThe International Society of Civil Engineers is established on Earth.Halo 3 (Orbital)

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2080N/AN/AHumans settle on Luna, Mars, the Jovian Moons, and asteroids.Halo Encyclopedia

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2090N/AN/AHumanity concludes a conflict somewhat on par with World War II and the Rain Forest Wars.Halo: Glasslands page 33Glasslands page 33: "People in 1945 - and 2090, 2103, 2162 - could recall what peace felt like and knew what they'd missed."

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2103N/AN/AHumanity concludes a conflict somewhat on par with World War II and the Rain Forest Wars.Halo: Glasslands page 33Glasslands page 33: "People in 1945 - and 2090, 2103, 2162 - could recall what peace felt like and knew what they'd missed."

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2142N/AN/AThe Unggoy are incorporated into the Covenant.Halo Bestarium "Unggoy"

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2160N/AN/AThe Jovian Moons Campaign begins.http://www.halopedia.org/Jovian_Moons_CampaignXbox.com Halo TimelineDefunct

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2162N/AN/AThe Rainforest Wars occur.http://www.halopedia.org/The_Rain_Forest_WarsXbox.com Halo TimelineDefunct

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2162N/AN/AThe Battle of Delambre occurs.http://www.halopedia.org/Battle_of_DelambreHalo: The Cole Protocol page 113The conflict took place "at the close of the Rain Forest Wars"

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2162N/AN/AThe United Security Acts of 2162 and Homeland Security Act of 2162 are created.Halo: Ghosts of Onyx page 127

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2163N/AN/AThe United Nations Space Command is formed.http://www.halopedia.org/United_Nations_Space_CommandHalo Encyclopedia

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2163N/AN/AThe Argyre Planitia Campaign takes place.http://www.halopedia.org/Argyre_Planitia_CampaignXbox.com Halo TimelineDefunct

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2164N/AN/AThe Interplanetary War begins between the Koslovics and Friedens.http://www.halopedia.org/Interplanetary_WarXbox.com Halo TimelineDefunct

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2164N/AN/AThe military novel "A Soldier's Tale: Rainforest Wars" is first published.http://www.halopedia.org/A_Soldier%27s_Tale:_Rainforest_WarsHalo: Ghosts of Onyx page 379

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2164N/AN/AThe first UNSC military bioengineering protocols are created, which would later form the basis of the ORION (SPARTAN-I) Project.Halo Encyclopedia

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2170N/AN/AThe Interplanetary War ends with the signing of the Callisto Treaty.http://www.halopedia.org/Callisto_TreatyHalo Encyclopedia

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2170N/AN/AThe Unified Earth Government is formed.http://www.halopedia.org/Unified_Earth_Governmenthttp://halostory.bungie.org/halostory.timeline.html

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2215April20Wallace Fujikawa is born.http://www.halopedia.org/Wallace_FujikawaWallace Fujikawa memorial plaquehttp://www.halopedia.org/images/1/12/Wallace_fujikawa_bio.png

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2220January20Tobias Fleming Shaw is born.http://www.halopedia.org/Tobias_Fleming_ShawTobias Fleming Shaw memorial plaquehttp://www.halopedia.org/images/f/f4/Tobias_fleming_shaw.png

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2291AprilN/AThe Shaw-Fujikawa Translight Engine is created.http://www.halopedia.org/Shaw-Fujikawa_Translight_EngineWallace Fujikawa / Tobias Shaw memorial plaqueshttp://www.halopedia.org/images/1/12/Wallace_fujikawa_bio.png

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2310N/AN/AThe Committee of Mind for Security proposes vigorous modeling of first contact scenarios.Halo: Reach Data Pads (1)

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2313January14Construction of the Quito space tether is completed.http://www.halopedia.org/Quito_Space_TetherHalo 3 Map "Orbital"

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2317November10Tobias Shaw dies at age 97.Tobias Fleming Shaw memorial plaquehttp://www.halopedia.org/images/f/f4/Tobias_fleming_shaw.png

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2318February18Wallace Fujikawa dies at age 102.Wallace Fujikawa memorial plaquehttp://www.halopedia.org/images/1/12/Wallace_fujikawa_bio.png

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2321N/AN/AThe ORION project is first initiated, and then cancelled until 2491.http://www.halopedia.org/ORION_ProjectHalo: Reach Data Pads (7)

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2332N/AN/AThe Ross-Ziegler blip is discovered.http://www.halopedia.org/Ross-Ziegler_BlipHalo Evolutions "From the Office of Dr. William Arthur Iqbal" page 519

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2332August22Hod Rumnt (High Prophet of Mercy) is born.http://www.halopedia.org/Prophet_of_MercyHalo: The Essential Visuals Guide page 147

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2362N/AN/AThe planet Reach is colonized.http://www.halopedia.org/ReachHalo: The Essential Visuals Guide page 151

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2362January1The colony ship Odyssey is launched.http://www.halopedia.org/Odysseyhttp://halostory.bungie.org/halostory.timeline.html

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2390N/AN/AThe colonization of the inner colonies is fully underway. Humanity has colonized 210 worlds at this point.http://www.halopedia.org/Inner_ColoniesXbox.com Halo TimelineDefunct

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2396March15Ord Casto (High Prophet of Truth) is born.http://www.halopedia.org/Prophet_Of_TruthHalo: The Essential Visuals Guide page 149

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2401March9The Quito Space Tether (constructed in 2313) is finally named.http://www.halopedia.org/Quito_Space_TetherHalo 3 "Orbital"

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2415N/AN/AA member of The Assembly recommends that members of the group on occasion submit to vivisection by our creators for the benefit of both groups.Halo: Reach Data Pad (4)

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2429N/AN/AThe planet Arcadia is colonized.http://www.halopedia.org/ArcadiaHalo: The Essential Visuals Guide page 12

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2461FebruaryN/AMargaret Orlenda Parangosky is born.http://www.halopedia.org/ParangoskyHalo: Ghosts of Onyx page 44

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2461February16Jerald Mulky Ander is born.http://www.halopedia.org/Jerald_Mulkey_AnderHalo Graphic Novel page 122

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2461October28Lod Mron (High Prophet of Regret) is born.http://www.halopedia.org/Prophet_of_RegretHalo: The Essential Visuals Guide page 148

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2462N/AN/AThe Grunt rebellion takes place nearly resulting in the Unggoy's homeworld of Balaho being glassed.http://www.halopedia.org/The_Grunt_RebellionHalo Encyclopedia page 115

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2468N/AN/AThe planet Harvest is colonized.http://www.halopedia.org/HarvestHalo: Contact Harvest page 32

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2470November3Preston Cole is born.http://www.halopedia.org/Preston_ColeHalo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 415

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2473N/AN/AThe Spirit of Fire is constructed.http://www.halopedia.org/Spirit_Of_FireHalo Wars: Genesis page 14

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2479June12James Gregory Cutter is born.http://www.halopedia.org/James_Gregory_CutterHalo: The Essential Visuals Guide page 43

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2481March12Wallace Fujikawa Elementary School writes a confidential note stating that Preston Cole scored perfect on two algebra tests. Additionally, following a social worker visit to his house at the request of the school, they discover that there is no evidence of abuse in his household.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 417

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2481July24Parg Vol is born.Halo 4 Essential Visuals Guide Page 29

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2484N/AN/APreston Cole writes a school paper entitled "The Viability of Extended Colonization."Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 417

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2485December10Thel 'Vadam is born.http://www.halopedia.org/Thel_%27VadamHalo: The Essential Visuals Guide page 11

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2486July3Michael Stanforth is born.http://www.halopedia.org/Michael_StanforthHalo 3: ODST "Alpha Site" ONI Memorial Plaque

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2487September21Rtas 'Vadum is born.http://www.halopedia.org/Rtas_%27VadumHalo: The Essential Visuals Guide page 175

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2488September21Preston Cole enlists in the UNSC Navy.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" 420

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2488November3Petty Officer Second Class Graves recommends Preston Cole be moved onto NCO track.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" 421

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2489March5Jul 'Mdama is born.Halo 4 Essential Visuals Guide Page 27

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2489September22Preston Cole formulates a new way of calculating slipspace input parameters.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 426

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2489October16Preston Cole sends a letter to his brother Michael telling him about his time onboard the CMA Season of Plenty.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 427

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2489November27A bi-annual personnel review of CMA Season of Plenty recommends Preston Cole to Luna OCS Academy.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 428

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2490September4Terrence Hood is born.http://www.halopedia.org/Terrence_HoodHalo: The Essential Visuals Guide page 113

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2491N/AN/AOnyx is discovered and the Assembly recommends it be removed from the list of colonization candidates.http://www.halopedia.org/OnyxHalo: Reach Data Pad (6)

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2491N/AN/ANed Rich is born.http://www.halopedia.org/Ned_RichHalo: Ghosts of Onyx page 44

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2491N/AN/AElias Carver published "The Carver Findings."http://www.halopedia.org/Carver_FindingsHalo Encyclopedia page 44

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2491N/AN/AThe ORION Project is re-initiated.Halo: The Flood page 16

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2491May6Onyx is recommended for colonization.Halo: Ghosts of Onyx page 123

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2491July8Tartarus is born.http://www.halopedia.org/TartarusHalo: The Essential Visuals Guide page 194

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2492N/AN/AThe Jiralhanae are incorporated into the Covenant.http://www.halopedia.org/JiralhanaeHalo Encyclopedia page 115

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2492February19UNSC ENGCORP requests specialists in Paleo- and Xenobiology and Biochemistry for a follow-up survey of Onyx.Halo: Ghosts of Onyx page 124

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2492March19Catherine Elizabeth Halsey is born.http://www.halopedia.org/HalseyHalo 3: ODST "Alpha Site" ONI Memorial Plaque

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2492June7Preston Cole is asked to testify in front of the Board of Inquiry of Luna OCS.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 430

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2492August17Preston Cole and Inna Volkov are married.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 433

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2492December12Ivan Volkov is born.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 434

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2494N/AN/AThe first rebel Insurrection in the Eridanus Sytem takes place.http://www.halopedia.org/Eridanus_system#HistoryHalo: The Fall of Reach Page 17

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2494March2The Callisto Incident begins the Insurrection.http://www.halopedia.org/Callisto_IncidentHalo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 436

.

2494March2After suffering damage and casualties, Second Lieutenant Preston Cole assumes command of the UNSC Las Vegas and surrenders to the Insurrectionists to save his crew.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 442

.

2494March2In a bluff, Preston Cole opens fire on the Callisto, crippling it and taking control.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 444

.

2495N/AN/AThe Hopeful is commandeered by the UNSC.http://www.halopedia.org/HopefulHalo: Ghosts of Onyx page 97

.

2495February8Jacob Keyes is born.http://www.halopedia.org/Jacob_KeyesHalo: The Essential Visuals Guide page 106

.

2498January16Arcadia colony opens the Deep Space Research Array.Halo Wars Timeline

.

2499October19Gek 'Lhar is born.Halo 4 Essential Visuals Guide Page 28

.

2500March9Preston Cole sends a message to Inna Volkov asking about her wishes of a divorce.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 447

.

2500May28Andrew Del Rio is born.http://www.halopedia.org/Andrew_Del_RioHalo 4 Essential Visual Guide Page 12https://twitter.com/HaloWaypoint/status/339488591728230401

.

2501May29John Forge is born.http://www.halopedia.org/John_ForgeHalo: The Essential Visuals Guide page 72

.

2501June2Preston Cole fights the Insurrectionist ship Bellicose to a stalemate.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 452

.

2501September4Preston Cole sends a letter to his brother Michael talking about the Bellicose and his shore leave.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 452

.

2502March12Preston Cole sends a letter to his brother Michael talking about a woman named Lyra he met on shore leave.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 453

.

2502March13Operation: KALEIDOSCOPE takes place on Harvest.http://www.halopedia.org/Operation:_KALEIDOSCOPEHalo: Graphic Novel page 122

.

2502March13Jerald Mulky Ander is killed in action by Avery Johnson.http://www.halopedia.org/Jerald_Mulkey_AnderHalo: Graphic Novel page 122

.

2502May28Preston Cole sends a letter to his brother Michael talking about the skirmish at Capella and visiting Lyra on Roost.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 453

.

2502November9Preston Cole sends a letter to his brother Michael telling him he has married Lyra and she is pregnant.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 454

.

2503June13Admiral Michael Stanforth send a message to Preston Cole informing him that his wife Lyra is a high ranking member of the Insurrection.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 454

.

2503July6Preston Cole sends a letter to his brother Michael telling him that Lyra was a part of the Insurrection and the captain of the Bellicose Cole fought.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 456

.

2503August13Ellen Anders is born.http://www.halopedia.org/Ellen_AndersHalo: The Essential Visuals Guide page 8

.

2504January2UNSC Battle Group Tango after-action report states the Bellicose was pulled into the gravity well of a gas giant and lost with all hands.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 457

.

2506N/AN/AThe ORION project is cancelled.Halo Wars Timeline

.

2506N/AN/AApproximate year Wallace Jenkins is born.http://www.halopedia.org/Wallace_A._JenkinsHalo: Contact HarvestNo exact year, but 2524-18=2506. Jenkins hasn't gone to college yet.

.

2506January3Gage Yevgenny is born.http://www.halopedia.org/Gage_YevgennyHalo: Evolutions "Dirt" page 105

.

2506May15Sandra Tillson is born.http://www.halopedia.org/Sandra_TillsonHalo 4 Essential Visual Guide Page 15https://twitter.com/HaloWaypoint/status/334403913585414144

.

2507September30Cadmon Lasky is born.http://www.halopedia.org/Cadmon_LaskyHalo 4: Forward Unto Dawn Part 3

.

2510December1The Pillar of Autumn is first launched.http://www.halopedia.org/UNSC_Pillar_of_AutumnHalo Waypoint Data Drop 5https://waypointassets.blob.core.windows.net/mobilecontent/legacysupport/content/assets/en-us/oni/577839090903298928/ddr-a340024-1115-08-27-52.pdf

.

2510August22Edward Buck is born.http://www.halopedia.org/Edward_Buckhttp://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2510December15Carris-137 is born.http://www.halopedia.org/Carris-137Dr. Halsey's journal

.

2511N/AN/AMany SPARTAN-IIs including John-117 are born.Halo: The Fall of Reach2517-6=2511

.

2511January3All Onyx data is deemed classified.Halo: Ghosts of Onyx page 124

.

2511March5Jorge-052 is born.http://www.halopedia.org/Jorge-052http://www.gameinformer.com/b/features/archive/2010/01/28/feature-noble-team-profile-4.aspx

.

2511March7John-117 is born.Halo 4 Essential Visual Guide Page 10

.

2511May16Caleb-095 is born.http://www.halopedia.org/Caleb-095Dr. Halsey's journal

.

2511SeptemberN/AKelly-087 is born.http://www.halopedia.org/Kelly-087Dr. Halsey's journalSeptember assumed from Halsey's journal

.

2511September15Naomi-010 is born.Halo: Mortal Dictata

.

2511October19Kurt-051 is born.http://www.halopedia.org/Kurt_AmbroseDr. Halsey's journal

.

2511October22An ONI field report of Onyx reveals alien ruins discovered and recommends additional funding and excavation.Halo: Ghosts of Onyx page 125

.

2512August15Thomas Lasky is born.http://www.halopedia.org/Thomas_LaskyHalo 4: Forward Unto Dawn Part 3

.

2512N/AN/AAdmiral Michael Stanforth is appointed head of ONI Section Three.Halo 3: ODST Memorial Plaque

.

2512N/AN/AColonel Robert Watts defects to the Insurrection.Halo: TFoR: Bootcamp page 59

.

2513N/AN/ABrain mutations are outlawed by the UNSC MED CORPS.Halo: Ghosts of Onyx page 108

.

2513May21Colonel Watts and his rebellion flee Eridanus II while being attacked by UNSC forces.Halo: TFoR: Bootcamp page 6

.

2514N/AN/AIgnatio Delgado is born.http://www.halopedia.org/Ignatio_DelgadoHalo: The Cole Protocol page 41Born 14 years before Madrigal was glassed, could potentially be born in 2513.

.

2514N/AN/AJames Gregory Cutter is transfered to serve on the UNSC Final Summit, having formerly been assigned to the UNSC Brilliant Shores.Halo Wars: Genesis

.

2515N/AN/ADr. Halsey becomes a scientific advisor to ONI.Halo 3: ODST Dr. Halsey's Memorial Plaquehttp://www.halopedia.org/File:Halsey_Mem.jpg

.

2517June~29Jacob Keyes graduates UNSC OCS.Halo: The Fall of Reach Page 19August 17 minus 49 days = June 29

.

2517August3John-117 and Parisa have their photo taken at Lake Gusev on Eridanus II.Halo: Evolutions "Palace Hotel" page 368"Two weeks later he would receive an antique coin from Dr. Catherine Halsey."

.

2517August17Dr. Halsey and Lt. (JG) Keyes visit John-117 on Eridanus II.Halo: The Fall of Reach Page 21

.

2517N/AN/A75 children are conscripted into the SPARTAN-II program.http://www.halopedia.org/SPARTAN-II_ProgramHalo: The Fall of Reach Page 27

.

2517September2An ONI field report of Onyx recommends increased staffing and funding due to the potentially extensive size of the ruins.Halo: Ghosts of Onyx page 126

.

2517September10Dr. Hasley tells Déjà to give the word to begin the abduction of the Spartan candidates.Halo: TFoR: Bootcamp page 15

.

2517September23The 75 SPARTAN-II children are addressed by Catherine Halsey on Reach regarding their conscription into the S-II program.Halo: The Fall of Reach Page 27

.

2517September24Day 1 of SPARTAN-II training begins.Halo: The Fall of Reach Page 35

.

2517September25John, Kelly, and Sam become friends.Halo: The Fall of Reach Page 45

.

2518May24Chief Mendez puts the Spartan trainees through a training exercise to make them experience fear and pain, and to learn to never let these feelings dominate them.Halo: TFoR: Bootcamp page 73

.

2519June3Taylor "Dutch" Miles is born.http://www.halopedia.org/Taylor_Mileshttp://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2519July12SPARTAN-II trainees undergo a training exercise that makes John-117 a squad leader.Halo: The Fall of Reach Page 54

.

2519August8James Cutter is promoted to Commander and transferred to the UNSC Glasgow.

.

2520N/AN/AMalcolm Geffen is born.http://www.halopedia.org/Malcolm_GeffenHalo: Glasslands page 83"His file said he was thirty-three [...]"

.

2520July20The Spirit of Fire is requisitioned by the UNSC for refit following its conclusion of civilian duty.Halo Wars "Arcadia City" Black Box

.

2520August27Carter-A259 is born.http://www.halopedia.org/Carter-A259http://www.gameinformer.com/b/features/archive/2010/01/25/feature-noble-team-profile-1.aspx

.

2520September1MAC cannons are added to the Spirit of Fire during an extensive refit at the Reach orbital shipyard.Halo Wars: Genesis page 15

.

2522February1Henry Glassman is born.Halo 4 Essential Visuals Guide Page 25

.

2522June5Dr. Halsey is made chief scientist at ONI.Dr. Halsey's journal

.

2522N/AN/ALian Devereaux is born.http://www.halopedia.org/Lian_DevereauxHalo: The Thursday War Page 95"Let me know if you need a hand. Because I'd like to live to see thirty-two."

.

2523March11Emile-A239 is born.http://www.halopedia.org/Emile-A239http://www.gameinformer.com/b/features/archive/2010/01/26/feature-noble-team-profile-2.aspx

.

2523July14The SPARTAN-II trainees play CTF against Tango Company in a training exercise.Halo: First Strike page 157-166

.

2524January3Gage Yevgenny enlists in the CMA.Halo: Evolutions "Dirt" page 105

.

2524January18A telescope on Mars captures the first photograph of what looks like High Charity.Dr. Halsey's journal

.

2524February28Jun-A266 is born.http://www.halopedia.org/Jun-A266http://www.gameinformer.com/b/features/archive/2010/01/29/feature-noble-team-profile-5.aspx

.

2524May22James Cutter is awarded the Bronze Star for his actions aboard the UNSC Glasgow.https://twitter.com/HaloWaypoint/status/337321498186510336

.

2524June12Kojo "Romeo" Agu is born.http://www.halopedia.org/Kojo_Aguhttp://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2524June16Avery Johnson and Nolan Byrne lead an assault as part of Operation: TREBUCHET.Halo: Contact Harvest page 9

.

2524August7Marcille Johnson passes away.Halo: Contact Harvest page 41"How many days?" "Three."

.

2524August10Avery Johnson arrives in Chicago on leave from Operation: TREBUCHET.Halo: Contact Harvest page 37

.

2524September3The first attack by Covenant forces on a human vessel, the UNSC Horn of Plenty, occurs in the Harvest system.Halo: Contact Harvest page 27

.

2524September16Horn of Plenty's distress signal reaches Harvest.Halo: Contact Harvest page 28"Three hundred and twenty hours, fifty-one minutes, and seven-point-eight seconds later [...] registered Horn of Plenty's distress signal."

.

2524November17Miranda Keyes is conceived.Dr. Halsey's Journal

.

2524December21Avery Johnson arrives on Harvest.Halo: Contact Harvest page 76

.

2524DecemberN/AThe Covenant vessel Minor Transgression discovers Harvest.Halo: Contact Harvest page 92See Note 8.

.

2524DecemberN/AThe first casualty of the Human-Covenant war. Henry Gibson is killed by the Huragok Lighter Than Some.Halo: Contact Harvest page 101

.

2525January2Avery Johnson begins training the Colonial Militia on Harvest.Halo: Contact Harvest page 105"After two weeks of physical training..."

.

2525January16Avery Johnson and Captain Ponder attend the Solstice Celebration in Utgard, Harvest.Halo: Contact Harvest page 114

.

2525January17The skirmish over Harvest takes place.http://www.halopedia.org/Skirmish_Over_HarvestHalo: Contact Harvest page 129

.

2525January17The Minister of Fortitude and the Vice Minister of Tranquility learn of the luminary detections.Halo: Contact Harvest page 155See Note 8.

.

2525January20Mack begins burying Harvest's mass driver.Halo: Contact Harvest page 180

.

2525February3Harvest's Tiara makes long range contact with the Covenant.Halo: The Fall of Reach Page 96

.

2525February3Contact with Harvest is lost.Halo Wars Timeline

.

2525February9Brute Chieftan Maccabeus and the Covenant vessel Rapid Coversion arrive at Harvest.Halo: Contact Harvest page 223See Note 8.

.

2525February11A Covenant delegation meets with a human degelation on Harvest.Halo: Contact Harvest page 249

.

2525February11The Human-Covenant War begins.http://www.halopedia.org/Human-Covenant_WarHalo: Contact Harvest page 252

.

2525FebruaryN/AThe Minister of Fortitude, Vice Minister of Tranquility, and a Philologist conspire to usurp the three current Hierarchs after learning that humans are Reclaimers.Halo: Contact Harvest page 278See Note 8.

.

2525February23Tartarus kills Maccabeus and takes the Fist of Rukt.Halo: Contact Harvest page 346

.

2525February23Evacuation of Harvest. 22,000-23,000 casualties.Halo: Contact Harvest page 352

.

2525February23Loki destroys the Harvest Tiara.Halo: Contact Harvest page 378

.

2525February23Sif is destroyed.Halo: Contact Harvest page 378

.

2525FebruaryN/AThe Ninth Age of Reclamation begins.http://www.halopedia.org/Ninth_Age_of_Reclamation#Ninth_Age_of_ReclamationHalo: Contact Harvest page 379See Note 8.

.

2525FebruaryN/AThe prophets of Regret, Mercy, and Truth become the three Covenant Hierarchs.Halo: Contact Harvest page 383See Note 8.

.

2525March6The Onyx budget is reprioritized due to the lack of technologies discovered. A skeleton crew and a single AI remain behind to continue the work.Halo: Ghosts of Onyx page 127

.

2525March9SPARTAN-II trainees undergo augmentations. 33/75 successes.http://www.halopedia.org/SPARTAN-II_augmentation_proceduresHalo: The Fall of Reach Page 55

.

2525MarchN/A30 SPARTAN-II candidates are killed during the augmentation procedures.Halo: The Fall of Reach Page 61

.

2525March30SPARTAN-II burial detail takes place aboard the UNSC Atlas.Halo: The Fall of Reach Page 60

.

2525April20The Argo arrives in the Epsilon Indi system.http://www.halopedia.org/CMA_ArgoHalo: The Fall of Reach Page 96

.

2525April22John-117 fights 4 ODSTs onboard the UNSC Atlas during his recuperation from the augmentation procedures.Halo: The Fall of Reach Page 63

.

2525May11Preston Cole's liver fails from cirrhosis, and is subsequently replaced - as are his damaged heart and endocrine system - with flash-cloned transplants.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 459

.

2525July1Mack begins burying the maglev strands of the Tiara.Halo: Contact Harvest page 395

.

2525August8James Cutter takes command of the UNSC Spirit of Fire.Halo Wars: Genesis Page 11

.

2525September11The SPARTAN-IIs play CTF against trainers in Mark I exoskeletons.Halo: The Fall of Reach Page 71

.

2525September12The SPARTAN-IIs are briefed on their mission to capture Colonel Robert Watts.Halo: The Fall of Reach Page 75

.

2525September12John-117 is promoted to Petty Officer Third Class.Halo: The Fall of Reach Page 77

.

2525September14Colonel Robert Watts is captured by SPARTAN-IIs in the Eridanus System.http://www.halopedia.org/Robert_WattsHalo: The Fall of Reach Page 94

.

2525~SeptemberN/AAn Insurrectionist bomb detonates in a club in Elysium City killing and injuring dozens of people.Halo: Evolutions "Dirt" page 115

.

2525~SeptemberN/AAllison Stark is killed.http://www.halopedia.org/Allison_StarkHalo: Evolutions "Dirt" page 115

.

2525~SeptemberN/AGage Yevgenny enlists in the ODSTs.Halo: Evolutions "Dirt" page 118

.

2525October7UNSC Battlegroup 4 arrives at Harvest led by Captain Maribeau Veredi of the UNSC Destroyer Heracles.http://www.halopedia.org/Battlegroup_4Halo: The Fall of Reach Page 96 / Halo Wars: Genesis page 2

.

2525November1The UNSC is put on full alert against the Covenant threat.Halo: The Fall of Reach Page 98

.

2525November2The SPARTAN-IIs are briefed on the UNSC's first contact with the Covenant.Halo: The Fall of Reach Page 98

.

2525November2John-117 has his last conversation with Mendez before ever seeing him again.Halo: The Fall of Reach Page 101

.

2525November2Lt. Demos and LtC Hopper visit Preston Cole to ask him to fight the Covenant. Cole accepts.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 460

.

2525November15Preston Cole writes a log with his assessment of the Covenant: trouble.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 461

.

2525November27SPARTAN-IIs are equipped with MJOLNIR Mark IV armor at the Damascus Testing Facility.http://www.halopedia.org/Mjolnir_mark_ivHalo: The Fall of Reach Page 118

.

2525November27Samuel-034 is killed in action onboard a Covenant ship.http://www.halopedia.org/Samuel-034Halo: The Fall of Reach Page 130

.

2526N/AN/ABiko is glassed by the Covenant.Halo: Reach Data Pads (10)Could possibly have been glassed in 2525.

.

2526February13Bliss is glassed by the Covenant.http://www.halopedia.org/BlissDr. Halsey's Journal "Accra Incident"

.

2526March1Preston Cole's fleet arrives at Harvest for the Second Battle of Harvest.http://www.halopedia.org/Second_Battle_of_HarvestHalo Wars: Genesis Page 4

.

2526March24An Insurrectionist bomb goes off in a Troisi city spaceport on Lodestone that kills 26 people and severely injures another 64.Halo 4: Forward Unto Dawn [20:28]

.

2526April2An Insurrectionist plot is stopped on New Harmony, Mars.Halo 4: Forward Unto Dawn [20:40]

.

2526April26The Covenant attack the Corbulo Military Academy on Circinius IV.http://www.halopedia.org/Battle_of_Circinius_IVHalo: Forward Unto Dawn part 3

.

2526April26Beamish is killed in action.http://www.halopedia.org/BeamishHalo: Forward Unto Dawn part 3

.

2526April26Circinius IV is glassed by the Covenant.Halo: Forward Unto Dawn episode 5

.

2526October21117 UNSC vessels take on 12 Covenant vessels in the Origami Asteroid Field, Alpha Aurigae System. 37 UNSC vessels are destroyed in the battle.Halo Wars: Genesis Page 7

.

2527N/AN/ASoren-066 is assigned a desk job on Reach where he meets Partch.http://www.halopedia.org/Soren-066Halo: Evolutions "Pariah"

.

2527March20Benjamín Nùñez is born.http://www.halopedia.org/Benjamin_M._NunezHalo: Landfall "Arms Race"

.

2527April13Sarah Palmer is born.Halo 4 Essential Visuals Guide Page 18

.

2528N/AN/AMJOLNIR Security variant is produced.http://www.halopedia.org/MJOLNIR_Powered_Assault_Armor/SecurityHalo 3

.

2528N/AN/AThe Assembly decides that low population Outer Colonies need to be sacrificed to determine the Covenant's pattern of movement.Halo: Reach Data Pads (13)

.

2528N/AN/AMadrigal is glassed by the Covenant.http://www.halopedia.org/MadrigalHalo: The Cole Protocol page 72

.

2528January30James Cutter turns down a command position on the destroyer UNSC Prophecy to stay closer to his family.Halo Wars Timeline

.

2528February13Battle of XI Boötis A takes place. A UNSC victory.http://www.halopedia.org/Battle_of_XI_Bo%C3%B6tis_AHalo Wars: Genesis Page 7

.

2528December5Edward Buck enlists in the UNSC Marine Corps.http://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2529N/AN/AThe Battle of Hat Yai takes place.Halo: Evolutions "Dirt" page 126Possibly in 2528

.

2529N/AN/AEric Santiago awakens from a five-year coma and enlists in the UNSC Navy as a Pilot.Halo: Evolutions "Dirt" page 135

.

2529N/AN/AAI Juliana is reactivated to coordinate the Rubble.Halo: The Cole Protocol page 86"They unpacked me from storage to run the Rubble the year after Madrigal was glassed."

.

2530N/AN/AEridanus II is glassed by the Covenant.http://www.halopedia.org/Eridanus_IIHalo: First Strike page 240

.

2530N/AN/ASPARTAN-II Blue Team shuts down Insurrectionists' Station Jefferson.Halo: Ghosts of Onyx page 36

.

2530N/AN/ANoble 6 is born.http://www.halopedia.org/Noble_6http://www.gameinformer.com/b/features/archive/2010/01/29/feature-noble-team-bonus-profile.aspx

.

2530January30Catherine-B320 is born.http://www.halopedia.org/Catherine-B320http://www.gameinformer.com/b/features/archive/2010/01/27/feature-noble-team-profile-3.aspx

.

2530August17John Forge is arrested for assaulting a senior officer. He is found not guilty and the senior officer is court martialed. John Forge is assigned to the Spirit of Fire.Halo Wars Timeline

.

2530October19Anthony Madsen is born.Halo 4 Essential Visuals Guide Page 23

.

2530October20Michael "Mickey" Crespo is born.http://www.halopedia.org/Michael_Crespohttp://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2530December24Battle of Groombridge-1830 (Battle of The Great Bear) takes place. A UNSC victory.http://www.halopedia.org/Battle_of_Groombridge-1830Halo Wars: Genesis Page 7

.

2530December25Subject-386 is interrogated by Preston Cole and AI Solipsil.http://www.halopedia.org/Subject_386Halo: The Fall of Reach (2010) Adjunct

.

2531N/AN/AMJOLNIR EOD variant is produced.http://www.halopedia.org/EODHalo 3

.

2531January3UNSC Spirit of Fire is sent to assist the UNSC Prophecy, they are ambushed by Covenant forces.Halo Wars: Genesis Page 10

.

2531JanuaryN/AEllen Anders joins the UNSC Spriit of Fire as an ONI scientist.Halo Wars: Genesis Page 37

.

2531Jan/FebN/ADaisy-023 is killed in action.http://www.halopedia.org/Daisy-023Halo Legends "Homecoming"

.

2531Jan/FebN/ARalph-303 is killed in action.http://www.halopedia.org/Ralph-303Halo Legends "Homecoming"

.

2531February4James Cutter reflects on 5 years of war on Harvest.Halo Wars "Alpha Base"

.

2531February4The UNSC discovers a Forerunner map on Harvest the Covenant have been digging up.Halo Wars "Relic Approach"

.

2531February6Ellen Anders sends a message to her father about what she discovered on Harvest. The message is encoded in an analysis of Homer's Odyssey and missed by ONI censors.Halo Wars "The Flood" Black Box

.

2531February7The UNSC Spirit of Fire holds a funeral service for the crew of the UNSC Prophecy.Halo Wars "Relic Approach" Black Box

.

2531February9Spirit of Fire arrives at Arcadia where they meet Spartan Red Team.Halo Wars "Arcadia City"

.

2531FebruaryN/AThe Covenant discover the Apex site and a fleet or Forerunner vessels.Halo Wars "Scarab"

.

2531February10Ellen Anders is captured by Arbiter Ripa 'Moramee. Captain Cutter makes the decision to pursue the Covenant.Halo Wars "Anders' Signal"

.

2531February14Knowing many of the Spirit of Fire's crew may die, the ship's AI Serina fabricates and sends them letters for Valentine's day.Halo Wars "Shield World" Black Box

.

2531February23The Spirit of Fire arrives at an unknown planet.Halo Wars "Anders' Signal"

.

2531February23Battle of Shield World 0459 takes place.http://www.halopedia.org/Battle_of_Shield_World_0459Halo Wars "Shield World"

.

2531February25Ripa 'Moramee is killed in action.Halo Wars "Escape"

.

2531February25Spirit of Fire escapes Shield World 0459.Halo Wars "Escape"

.

2531February25John Forge is killed in action during the destruction of Shield World 0459.Halo Wars "Escape"

.

2531March1Chief Engineer Prescott finishes his assessment of damage to Spirit of Fire and repairs continue to the hull, the FTL core reactor cannot be replaced and plans to manufacture a spare from base reactor units is considered impossible.Halo Wars "Reactor" Black Box

.

2531March11The survivors of the Spirit of Fire are put into cryo sleep for the long journey home.Halo Wars "Escape"

.

2531MayN/APreston Cole sends a message to Admiral Stanforth regarding the Covenant's xenophobia and his Cole Protocol.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 467

.

2531May1SPARTAN-II raid on Insurrectionist camp New Hope.Halo: Ghosts of Onyx page 31

.

2531July12Catherine Halsey sends Miranda to live with Jacob Keyes.Dr. Halsey's Journal July 12, 2531

.

2531October24Colonel Ackerson is given the green light for his SPARTAN-III project.http://www.halopedia.org/SPARTAN-IIIHalo: Ghosts of Onyx page 47

.

2531November7Kelly, Kurt, and Fred are sent to recon Construction Platform 966A.http://www.halopedia.org/Construction_Platform_966AHalo: Ghosts of Onyx page 49

.

2531November7A malfunction with Kurt-051's thruster pack causes him to be propelled into space.Halo: Ghosts of Onyx page 55

.

2531November7Kurt-051 is listed as MIA.Halo: Ghosts of Onyx page 57

.

2531December14Kurt wakes up aboard the UNSC Point of No Return.Halo: Ghosts of Onyx page 57

.

2531December14Kurt is given the surname Ambrose by James Ackerson.Halo: Ghosts of Onyx page 59

.

2531December14Kurt is briefed on training the next generation of Spartans and is promoted to Lieutenant Junior Grade.Halo: Ghosts of Onyx page 64

.

2531December19Nicole-458 is born.http://www.halopedia.org/Nicole-458http://halo.bungie.net/news/content.aspx?type=topnews&cid=7349

.

2531December27497 Alpha company recruits arrive on Onyx for the SPARTAN-III program.http://www.halopedia.org/SPARTAN-III#Alpha_CompanyHalo: Ghosts of Onyx page 67Discontinuity. See Note 3.

.

2532N/AN/ARandall-037 is listed as MIA.http://www.halopedia.org/Randall-037Halo: Ghosts of Onyx page 173

.

2532January19Codename: COALMINER sends a message to Codename: SURGEON regarding Kurt's training of the Spartan-IIIs.Halo: Ghosts of Onyx page 78

.

2532August24Paul DeMarco is born.Halo 4 Essential Visuals Guide Page 21

.

2533N/AN/AA number of Beta company SPARTAN-IIIs are born this year, including Tom-B292, Lucy-B091, and Min-B174.http://www.halopedia.org/SPARTAN-III#Beta_CompanyHalo: Ghosts of Onyx page 26"Like Tom, she was only 12 years old [...]" (Year 2545-12 = 2533)

.

2533N/AN/ASadie Endesha is born.http://www.halopedia.org/Sadie_EndeshaHalo 3: ODST "Sadie's Story"

.

2533N/AN/AAI Juliana begins to feel the effects of rampancy.http://www.halopedia.org/JulianaHalo: The Cole Protocol page 86

.

2533FebruaryN/APreston Cole ceases to update his personal logs.Halo: Evolutions "The Impossible Life and Possible Death of Preston J. Cole" page 474

.

2533November4Tedra Grant is born.Halo 4 Essential Visuals Guide Page 24

.

2533December15Carlo Hoya is born.Halo 4 Essential Visuals Guide Page 22

.

2534February10Spirit of Fire's status is changed from MIA to KIA.Halo: The Essential Visuals Guide page 43

.

2534JuneN/AJersey Morelli is born.i love bees

.

2534July5Gabriel Thorne is born.Halo 4 Essential Visuals Guide Page 20

.

2535N/AN/AMJOLNIR Air Assault variant is produced.http://www.halopedia.org/Air_AssaultHalo: Reach

.

2535N/AN/AJacob Keyes is assigned to the Midsummer Night.Halo: The Cole Protocol page 36

.

2535N/AN/AThel 'Vadamee is elected Kaidon of the state of Vadam.http://www.halopedia.org/Thel_%27VadamHalo: The Cole Protocol page 88

.

2535N/AN/ACharybdis IX is glassed by the Covenant.http://www.halopedia.org/Charybdis_IXHalo: The Cole Protocol page 148

.

2535N/AN/ABattle of the Rubble and Metisette takes place.http://www.halopedia.org/Battle_of_the_RubbleHalo: The Cole ProtocolNo exact pages. Takes place over several chapters.

.

2535N/AN/AThe Rubble crashes into the Redoubt and destroys it.Halo: The Cole Protocol page 328

.

2535N/AN/AThe Exodus asteroid enters slipspace and its way to the 18 Scorpii system.Halo: The Cole Protocol page 337

.

2535N/AN/AThe Fleet of Particular Justice is formed.http://www.halopedia.org/Fleet_of_Particular_JusticeHalo: The Cole Protocol page 349

.

2535N/AN/APreston Cole promotes Jacob Keyes to Commander.Halo: The Cole Protocol page 353

.

2535February9The battle of Jericho VII begins.http://www.halopedia.org/Battle_of_Jericho_VIIHalo: The Fall of Reach page 6"They jogged double-quick [...] returned to their drop-ship — a Pelican, scuffed and dented from three days' hard fighting."

.

2535February12Battle of Jericho VII ends.http://www.halopedia.org/Battle_of_Jericho_VIIHalo: The Fall of Reach Page 8

.

2535February12Jericho VII is glassed by the Covenant.http://www.halopedia.org/Jericho_VIIHalo: The Fall of Reach Page 8

.

2536N/AN/AMJOLNIR Hayabusa variant is produced.http://www.halopedia.org/HayabusaHalo Encyclopedia page 96

.

2536June1The Siege of the Inner Colonies begins.Halo Wars Timeline

.

2537N/AN/ATwo colonies in the Leonis Minoris system are glassed by the Covenant.Halo: Evolutions "The Impossible Life and Possible Death of Preston J. Cole" page 470

.

2537July27Operation: PROMETHEUS begins.http://www.halopedia.org/Operation:_PROMETHEUSHalo: Ghosts of Onyx page 84

.

2537July30Kurt-051 learns the fate of Alpha company. Beta company is given the green light.Halo: Ghosts of Onyx page 88Discontinuity. See Note 4.

.

2537August2Operation: PROMETHEUS ends resulting in total Alpha company casualties.Halo: Ghosts of Onyx page 87Discontinuity. See Note 4.

.

2539N/AN/AKholo is glassed by the Covenant.http://www.halopedia.org/KholoHalo: Evolutions "The Return"

.

2540N/AN/AMany members of the Gamma class of Spartan-IIIs are born this year.Halo: Glasslands page 401

.

2540MayN/AFhajad-084 writes the UNSC Astrophysics Journal 034-23-01.http://www.halopedia.org/UNSC_Astrophysics_Journal_034-23-01Halo: The Fall of Reach page 141

.

2540September9Taylor "Dutch" Miles enlists in the UNSC Marine Corps.http://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2541March12Kojo "Romeo" Agu Enlists in the UNSC Marine Corps.http://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2541June27Preston Cole records an audio log recounting many of his battles against the Covenant.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 470

.

2541August24Beta company Spartan-IIIs play "Ring the Bell" against their drill instructors.Halo: Ghosts of Onyx page 89

.

2542N/AN/AThe UNSC abandons the Emerald Cove colony.http://www.halopedia.org/Emerald_CoveHalo: First Strike

.

2543March6The Battle of 18 Scorpii takes place. UNSC forces are saved by Insurrectionists.http://www.halopedia.org/Battle_of_18_ScorpiiHalo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 473

.

2543March9Preston Cole contacts Admiral Dale Kilkin at UNSC Central Command Reach Logistics Office requesting a series of requisitions, transfers and favors.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" page 475

.

2543April18The Battle of Psi Serpentis takes place. Also known as Admiral Cole's Last Stand.http://www.halopedia.org/Battle_of_Psi_SerpentisHalo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" 476

.

2543July28A day of mourning is proclaimed by the UNSC following the apparent death of Preston Cole.Halo: Evolutions "The Impossible Life and Possible Dead of Preston J. Cole" 483

.

2544N/AN/AThe Battle of Miridem takes place.Halo: Ghosts of Onyx page 173

.

2544N/AN/ASheila-065 is killed in action.Halo: Ghosts of Onyx page 173

.

2544N/AN/ACatherine Halsey is captured by the Covenant.Halo: Legends "The Package"See Note 6.

.

2544N/AN/AMiridem is glassed by the Covenant.Halo: Ghosts of Onyx page 173It is not specifically stated that Miridem was glassed, but it can be assumed.

.

2544N/AN/AJohn-117 and a team of Spartans are sent to rescue Dr. Halsey.Halo: Legends "The Package"

.

2544N/AN/ASolomon-069 is killed in action.Halo: Legends "The Package"

.

2544N/AN/AArthur-079 is killed in action.Halo: Legends "The Package"

.

2544N/AN/AJohn-117 duels Thel 'Lodamee before narrowly escaping with Dr. Halsey.Halo: Legends "The Package"

.

2545May10Colonel Akono Menteith delivers a stirring speech, rallying the men and women of the 53rd Armored Division to great feats of heroism during the Battle of Actium.Halo Waypoint: Heroes Never Die

.

2545MayN/AActium is glassed by the Covenant.http://www.halopedia.org/ActiumHalo Waypoint: Heroes Never Die

.

2545May30A conversation takes places between Mendez and Kurt-051 regarding reassignment of certain SPARTAN-III beta company soldiers. Including Catherine-B320 and Spartan-B312.http://halo.bungie.net/news/content.aspx?cid=24530

.

2545July3Operation: TORPEDO begins.http://www.halopedia.org/Operation:_TORPEDOHalo: Ghosts of Onyx page 13

.

2545July3Operation: TORPEDO ends with nearly 100% casualties.Halo: Ghosts of Onyx page 27

.

2546N/AN/ANew Llanelli is glassed by the Covenant.http://www.halopedia.org/New_LlanelliHalo: Glasslands page 133

.

2546N/AN/ASargasso is glassed by the Covenant.http://www.halopedia.org/SargassoHalo: The Essential Visuals Guide page 184

.

2547N/AN/ASkopje is glassed by the Covenant.http://www.halopedia.org/SkopjeHalo: Evolutions "Dirt" page 135

.

2547N/AN/AGage Yevgenny reunites with Felicia Sanderson and Eric Santiago.Halo: Evolutions "Dirt" page 135

.

2547May21ONI Section Two publicly unveils the SPARTAN-II program.Halo: First Strikehttp://halo.bungie.net/projects/reach/article.aspx?ucc=intel&cid=24024

.

2547July7The Rookie enlists in the UNSC Marine Corps.http://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2547September4Dr. Catherine Halsey uses a ship's Slipspace drive in an experiment to build an AI housing fractal within Slipspace.Dr. Halsey's Journal

.

2548N/AN/ARoland Huffman enlists in the UNSC Defense Force.Halo 3: Believe "Enemy Weapons"

.

2548N/AN/ANiraj Shah enlists in the UNSC Defense Force.Halo 3: Believe "Gravesite"

.

2548N/AN/AMJOLNIR CQC variant is produced.http://www.halopedia.org/CQCHalo: The Essential Visuals Guide page 40

.

~2548N/AN/AThe Battle of Algolis takes place.Halo: Legends "Prototype"See Note 5.

.

~2548N/AN/ASergeant "Ghost" uses the HRUNTING/YGGDRASIL prototype armor to help civilians and military personnel to escape the Covenant. He subsequently initiates the self-destruct and is killed in action.Halo: Legends "Prototype"See Note 5.

.

~2548N/AN/AUNSC Heart of Midlothian is boarded by Covenant looking for Earth's coordinates.Halo: Evolutions "Midnight in the Heart of Midlothian" page 85See Note 5.

.

~2548N/AN/ASergeant Michael Baird allows himself to be killed by the Covenant so the ship's AI can self-destruct the ship preventing the Covenant from obtaining Earth's coordinates.Halo: Evolutions "Midnight in the Heart of Midlothian" page 101See Note 5.

.

2548June4Michael "Mickey" Crespo enlists in the UNSC Marine Corps.http://halo.bungie.net/news/content.aspx?type=topnews&link=Halo3ODSTsquad

.

2549N/AN/AAvery Johnson participates in the Siege of Paris IV where he allegedly contracts Boren's Syndrome.Halo: First Strike page 244

.

2549N/AN/AParis IV is glassed by the Covenant.Halo: First Strike page 244It is not specifically stated that Paris IV was glassed, but it can be assumed.

.

2549September9Arcadia is glassed by the Covenant.http://www.halopedia.org/ArcadiaHalo WarsTimeline

.

2549November7Cortana is created from Dr. Halsey's flash-cloned brain.http://www.halopedia.org/CortanaDr. Halsey's Journal

.

2549December15Mandatory psychiatric reevaluation of NOBLE Team takes place.http://halo.bungie.net/News/content.aspx?cid=24530

.

2550N/AN/AThe Pillar of Autumn undergoes a refit to update its weapons to battle the Covenant more effectively.Halo: The Fall of Reach 238

.

2550February11Dr. Halsey files a log stating that Cortana has disabled the viral termination code implanted in her matrix and that the acceptance of a 7 year life span may not apply to her.Halo 4 "Requiem"

.

2550April5Miranda Keyes is awarded the Silver Star, promoted to Lieutenant Commander, and given command of In Amber Clad.Dr. Halsey's Journal - April 6, 2550

.

2551N/AN/APawel Czernek enlists in the UNSC Marine Corps.Halo 3: Believe "Museum"

.

2551February19SPARTAN-III Gamma company begin their augmentations aboard Hopeful.http://www.halopedia.org/SPARTAN-III#Gamma_CompanyHalo: Ghosts of Onyx page 101

.

2551February20Kurt Ambrose receives a Slipspace COM probe from AI Deep Winter while onboard the UNSC Hopeful.Halo: Ghosts of Onyx page 106

.

2551November24MJOLNIR Mark V enters service.Bungie Weekly Update 01.29.10

.

2552January8A team of ODSTs descend on Ariel in response to a distress call during Operation: FIRESIDE.http://www.halopedia.org/ArielHalo: Helljumper issue 1

.

2552January8The Knowing is destroyed.Halo: Helljumper issue 5

.

2552April22The Battle of Fumirole takes place.Halo: The Essential Visuals Guide page 105

.

2552April22Thom-293 is killed in action.http://www.halopedia.org/Thom-293Deliver Hope trailer

.

2552May10Spartan-B312 is recognized by Colonel Holland as a replacement for Noble Team.Halo: Reach game manual

.

2552July17Station Archimedes detects Covenant forces near Sigma Octanus IV.http://www.halopedia.org/ArchimedesHalo: The Fall of Reach page 137

.

2552July17The Battle of Sigma Octanus IV begins.http://www.halopedia.org/Battle_of_Sigma_Octanus_IVHalo: The Fall of Reach page 145

.

2552July17Jacob Keyes devises the Keyes Loop and destroys 2 Covenant ships.http://www.halopedia.org/Keyes_LoopHalo: The Fall of Reach page 154

.

2552July17Jacob Keyes is promoted to Captain.Halo: The Fall of Reach page 161

.

2552July18Spartan Blue Team retrieves a geological artifact from Côte d'Azur.Halo: The Fall of Reach page 208

.

2552July18Spartan Blue Team detonates a HAVOK tactical nuke destroying Côte d'Azur.Halo: The Fall of Reach page 210

.

2552July23The Covenant deploy the Fleet of Valiant Prudence to sever Reach's communications.http://www.halopedia.org/Fleet_of_Valiant_PrudenceHalo: The Essential Visuals Guide page 111

.

2552July24Spartan-B312 joins Noble Team as Noble Six.Halo: Reach "Noble Actual"

.

2552July24Covenant forces are found on Reach. Winter Contingency is declared.Halo: Reach "Winter Contingency"

.

2552July26Covenant forces attack ONI sword base and are repelled by Noble Team.Halo: Reach "ONI: Sword Base"

.

2552AugustN/ASpartan Black Team is tasked with destroying a Covenant beacon on Verge.http://www.halopedia.org/VergeHalo: Evolutions "Blunt Instruments" page 193See "Notes" row 2 for date justification

.

2552AugustN/ASpartan Black Team is assigned to Operation: BLOWBACK and crash lands on Line Installation 1-4.http://www.halopedia.org/Operation:_BLOWBACKHalo: Blood Line issue 1http://www.halopedia.org/Halopedia:News/21_May_2009/Fred_Van_Lente_and_Spartan_Black

.

2552AugustN/A686 Ebullient Prism is destroyed.Halo: Blood Line issue 5

.

2552August11Noble Three and Noble Six recon behind enemy lines and discover a Covenant stealth pylon.Halo: Reach "Nightfall"

.

2552August12Noble Team fights in the Battle at Szurdok Ridge.http://www.halopedia.org/Battle_at_Szurdok_RidgeHalo: Reach "Tip of the Spear"

.

2552August12The UNSC discovers the Covenant supercarrier Long Night of Solace above Reach.http://www.halopedia.org/Long_Night_of_SolaceHalo: Reach "Tip of the Spear"

.

2552August12John-117 is debriefed at Camp Hathcock regarding the events of Sigma Octanus IV.Halo: The Fall of Reach

.

2552August14Operation: UPPER CUT is initiated. The mission is a success with the destruction of the Super Carrier Long Night of Solace.http://www.halopedia.org/Operation:_UPPER_CUTHalo: Reach "Long Night of Solace"

.

2552August14Jorge-052 is killed in action.Halo: Reach "Long Night of Solace"

.

2552August23Noble Six reaches New Alexandria, Eposz, after the destruction of Long Night of Solace.Halo: Reach "Exodus"

.

2552August23Noble Six and Noble Two destroy Covenant jamming devices in New Alexandria.Halo: Reach "New Alexandria"

.

2552August23Noble Team is ordered to redeploy to ONI Sword Base.Halo: Reach "New Alexandria"

.

2552August23Catherine-B320 is killed in action.Halo: Reach "New Alexandria"

.

2552August25Captain Keyes and the Pillar of Autumn are selected for Operation: RED FLAG.Halo: The Fall of Reach page 239

.

2552August27The remaining SPARTAN-IIs are told of Operation: RED FLAG.http://www.halopedia.org/Operation:_RED_FLAGHalo: The Fall of Reach page 239

.

2552August29Codename: COALMINER sends a message to Codename: SURGEON regarding the UNSC Circumference.Halo: The Fall of Reach page 281

.

2552August29John receives MJOLNIR Mark V armor and is introduced to Cortana in a training exercise.Halo: The Fall of Reach page 246

.

2552August29Noble Team arrives at ONI Sword Base.Halo: Reach "The Package"

.

2552August29Noble Team is contacted by Dr. Halsey and transported to a Forerunner artifact.Halo: Reach "The Package"

.

2552August29Noble Team is tasked with delivering a Cortana fragment to the Pillar of Autumn.http://www.halopedia.org/Cortana#Fragmentation_and_fateful_meetingHalo: Reach "The Package"

.

2552August29Noble Three is tasked to guard Dr. Halsey while the rest of Noble Team delivers Cortana to the Pillar of Autumn.Halo: Reach "The Package"

.

2552August30Cortana enacts some revenge on James Ackerson for nearly killing the Master Chief in a training exercise.Halo: The Fall of Reach page 267

.

2552August30The Pillar of Autumn is informed that Reach is under attack from Covenant forces.Halo: The Fall of Reach page 278

.

2552August30Chief Petty Officer McRobb self destructs Remote Sensing Station Fermion to deny the Covenant their NAV data.Halo: The Fall of Reach page 286

.

2552August30The Master Chief splits his Spartans into two teams: Blue Team will secure the NAV data about Circumference. Red Team will be deployed to Reach to repel Covenant forces.Halo: The Fall of Reach page 304

.

2552August30James-005 is killed in action.Halo: The Fall of Reach page 310

.

2552August30The Master Chief destroys the NAV data onboard Circumference.Halo: The Fall of Reach page 327

.

2552August30Spartan Red Team abandon their Pelican and hard drop on Reach.Halo: First Strike

.

2552August30Four Spartans are killed in action.Halo: First Strike

.

2552August30Joshua-029 is killed in action.Halo: First Strike

.

2552August30Fred-104 and Kelly-087 succeed in destroying a Covenant carrier on Reach.Halo: First Strike

.

2552August30Spartans 104, 087, 039, 030, and 043 rendezvous with Dr. Halsey at CASTLE Base.Halo: First Strike

.

2552August30Noble One, Four, and Six arrive in Aszod under fire from Covenant forces.Halo: Reach "The Pillar of Autumn"

.

2552August30Dr. Halsey and the Spartans with her escape to the mines under CASTLE base before it is leveled.Halo: First Strike

.

2552August30Carter-A259 is killed in action.Halo: Reach "The Pillar of Autumn"

.

2552August30Emile-A239 is killed in action.Halo: Reach "The Pillar of Autumn"

.

2552August30Noble Six destroys a CCS battlecruiser allowing the Pillar of Autumn to escape Reach.Halo: Reach "The Pillar of Autumn"Discontinuity. See Note 13.

.

2552August30Noble Six is killed in action.Halo: Reach "The Pillar of Autumn"

.

2552August30Michael Stanforth dies.Halo 3: ODST "ONI Alpha Site"

.

2552SeptemberN/ACoral is glassed by the Covenant.http://www.halopedia.org/Corali love bees

.

2552SeptemberN/AThe Battle of New Jerusalem takes place leaving The Rookie as one of the few survivors.http://www.halopedia.org/Battle_of_New_JerusalemHalo: Evolutions "Dirt" page 153

.

2552SeptemberN/AGage Yevgenny is killed in action.Halo: Evolutions "Dirt" page 153

.

2552SeptemberN/ANew Jerusalem is glassed by the Covenant.Halo: Evolutions "Dirt" page 153It is not specifically stated that New Jerusalem was glassed, but it can be assumed.

.

2552September4Lieutenant Wagner delivers his report of the events on Reach to the UNSC Security Council on Earth.Halo: First Strike

.

2552September14Earth's Orbital Defense Platforms are scheduled to come online.Halo: First Strike

.

2552September19The Pillar of Autumn arrives at Installation 04 commencing the Battle of Installation 04.http://www.halopedia.org/Battle_of_Installation_04Halo: CE "The Pillar of Autumn"

.

2552September19John-117 is awoken from cryo and sent to see Captain Keyes.Halo: CE "The Pillar of Autumn"

.

2552September19Captain Keyes hands Cortana to the Master Chief.Halo: CE "The Pillar of Autumn"

.

2552September19The crew of the Pillar of Autumn abandon ship and crash land aboard Halo in lifeboats.Halo: CE "The Pillar of Autumn"

.

2552September19Antonio Silva and his contingent of ODSTs leave the Autumn in SOEIVs.Halo: The Flood

.

2552September19The Ossoona Isna 'Nosolee is killed by Captain Keyes.Halo: The Flood

.

2552September19The Master Chief crash lands on Halo and saves a number of marine groups spread throughout the local canyons.Halo: CE "Halo"

.

2552September19Captain Keyes is captured and taken aboard the Truth and Reconciliation.Halo: The Flood

.

2552September19The remainder of the Pillar of Autumn's bridge crew are killed in action.Halo: The Flood

.

2552September19Major Silva and the Autumn's complement of ODTSs capture Alpha Base.http://www.halopedia.org/Battle_of_Installation_04#Capture_of_Alpha_BaseHalo: The Flood

.

2552September19John-117 leads a Marine force to rescue Captain Keyes.http://www.halopedia.org/The_Truth_and_ReconciliationHalo: CE "The Truth and Reconciliation"

.

2552September20John-117 is ordered to find the Silent Cartographer by Captain Keyes.http://www.halopedia.org/The_Silent_CartographerHalo: CE "The Truth and Reconciliation"

.

2552September20Captain Keyes leads an expidition to find a Forerunner weapons cache.Halo: CE "The Silent Cartographer"

.

2552September20John-117 finds and activates the Silent Cartographer before being transported into the Ring by Foehammer.Halo: CE "The Silent Cartographer"

.

2552September20A group of ODSTs led by Melissa McKay recover vehicles, weapons, and provisions from the Pillar of Autumn and return to Alpha Base.Halo: The Flood

.

2552September20Captain Keyes and his squad are overwhelmed by the Flood and are infected.Halo: The Flood

.

2552September20John-117 and Cortana discover Halo's control center. Cortana discovers the danger Captain Keyes is in and tells John-117 to find him.Halo: CE "Assault on the Control Room"

.

2552September20John-117 goes looking for Captain Keyes and encounters the Flood. He is taken by 343 Guilty Spark to the library.http://www.halopedia.org/343_Guilty_Spark_(level)Halo: CE "343 Guilty Spark"

.

2552September20Major Silva discovers a Flood infestation under Alpha Base. The ODSTs plan to capture the Truth and Reconciliation.Halo: The Flood

.

2552September21John-117 retrieves the activation index with the help of 343 GS before learning of Halo's true purpose.http://www.halopedia.org/The_LibraryHalo: CE "The Library"

.

2552September21To stall the firing of the ring, John-117 disables the 3 pulse generators in the control room canyon.http://www.halopedia.org/Two_BetrayalsHalo: CE "Two Betrayals"

.

2552September21Cortana teleports John-117 to the Truth and Reconciliation to retrieve Captain Keyes' neural implant.http://www.halopedia.org/KeyesHalo: CE "Keyes"

.

2552September21John-117 and Cortana discover that Captain Keyes has been transformed into a proto-gravemind.Halo: CE "Keyes"

.

2552September21Jacob Keyes in killed in action.Halo: CE "Keyes"

.

2552September21Major Silva's forces succeed in capturing the Truth and Reconciliation. Lt. Melissa McKay disables it to prevent Flood from speading.Halo: The Flood

.

2552September22Zuka 'Zamamee is killed in action.http://www.halopedia.org/Zuka_%27ZamameeHalo: The Flood

.

2552September22John-117 and Cortana manually destabilize the Autumn's fusion reactor and self-destruct the ship destroying the Halo.http://www.halopedia.org/The_MawHalo: CE "The Maw"

.

2552September22John-117 and Cortana escape the ring in a Longsword.Halo: CE "The Maw"

.

2552September22Immortal soldiers Chips Dubbo and Marcus P. Stacker also somehow survive.http://www.halopedia.org/Stackerhttp://www.halopedia.org/Chips_Dubbo

.

2552September22John-117 and Cortana rendezvous with the 4 remaining survivors of the Halo destruction. Seriously. They are in every game.Halo: First Strike

.

2552September22The survivors of the Halo ring capture Ascendant Justice and set course for Reach.http://www.halopedia.org/Ascendant_JusticeHalo: First Strike

.

2552SeptemberN/A343 Guilty Spark travels to the Threshold gas mine and is discovered by Sesa 'Refumee.Halo: CEA "Threshold Terminal"Could possibly have been October since that is when the Arbiter arrives.

.

2552September23A time/date record anomaly continues from this point in the narrative, resolved on Sep 7, 2552.Halo: First StrikeSee Note 12.

.

2552September7A time/date record anomaly continues from this point in the narrative, resolved on Sep 23, 2552.Halo: First StrikeSee Note 12.

.

2552September7Dr. Halsey and Red Team discover a Forerunner artifact under CASTLE Base.http://www.halopedia.org/Forerunner_crystalHalo: First Strike

.

2552September7Vinh-030 is killed in action.Halo: First Strike

.

2552September7Isaac-039 is killed in action.Halo: First Strike

.

2552September7After a battle with Covenant forces in an alternate slipspace, the survivors of Halo and Reach set course for the Eridanus system.Halo: First Strike

.

2552September7Cortana captures and disassembles a Covenant AI.Halo: First Strike

.

2552September7John-117 and the Halo survivors rendezvous with Admiral Whitcomb and a detachment of Spartans.Halo: First Strike

.

2552September7John-117 and his team rescue Dr. Halsey and her detachment of Spartans.Halo: First Strike

.

2552September7Ascendand Justice-Gettysburg undergo a disastrous slipspace battle with Covenant vessels.Halo: First StrikeSee Note 12.

.

2552September7Shiela Polaski is killed in action.Halo: First StrikeSee Note 12.

.

2552September7Li-008 is killed in action.Halo: First StrikeSee Note 12.

.

2552September7Anton-044 is killed in action.Halo: First StrikeSee Note 12.

.

2552September12Linda-058 is revived by Dr. Halsey.Halo: First Strike

.

2552September12Admiral Whitcomb has a meeting with Jacob Jiles who agrees to help repair their ships.Halo: First Strike

.

2552September13Dr. Halsey kidnaps Kelly-087 and steals a Chirpotera-class vessel and enters slipspace.Halo: First Strike

.

2552September13Corporal Locklear destroys the Forerunner crystal and is killed in action.Halo: First Strike

.

2552September13Admiral Whitcomb leaves the Eridanus system and the rebels are destroyed by the Covenant.http://www.halopedia.org/Massacre_at_Eridanus_SecundusHalo: First Strike

.

2552September13The remaining Spartans board and destroy the Covenant station Unyielding Hierophant.http://www.halopedia.org/Operation:_FIRST_STRIKEHalo: First Strike

.

2552September13Grace-093 is killed in action.Halo: First Strike

.

2552September13Danforth Whitcomb is killed in action.Halo: First Strike

.

2552September13Elias Haverson is killed in action.Halo: First Strike

.

2552OctoberN/AThe UNSC Red Horse is sent to the Installation 04 debris field and encounters the Mona Lisa, which has been infested with Flood.http://www.halopedia.org/The_Mona_LisaHalo: Evolutions "The Mona Lisa" page 223

.

2552OctoberN/ACorporal Palmer rescues Admiral Kovalic and a UNSC AI from a Covenant attack.Halo: Initiation Page 24January 2553 minus 3 months.

.

2552OctoberN/ACassandra-075 sends a message to John-117 from the M25L Recovery Station.Conversations from the Universe

.

2552October8Installation 03 is discovered by the freighter Floral Express.http://www.halopedia.org/Eleventh_Hour_reportsEleventh Hour Reports 5

.

2552October20Thel 'Vadamee is deemed a heretic and sentenced to death.Halo 2 "The Heretic"

.

2552October20John-117 is refitted with MJOLNIR Mark-VI armor.http://www.halopedia.org/Mark_viHalo 2 "The Armory"

.

2552October20Sergeant Johnson is awarded the Colonial Cross by Lord Hood.Halo 2 "Cairo Station"

.

2552October20Miranda Keyes is awarded a medal in her father's stead.Halo 2 "Cairo Station"

.

2552October20Thel 'Vadamee is branded with the Mark of Shame.Halo 2 "Cairo Station"

.

2552October20The Prophet of Regret's fleet arrives at Earth, beginning the Battle for Earth.http://www.halopedia.org/First_Battle_for_EarthHalo 2 "Cairo Station"

.

2552October20John-117 and UNSC forces repel boarders on Cairo station and deliver a bomb to destroy an assault carrier.Halo 2 "Cairo Station"

.

2552October20Sergeant Johnson knows what the ladies like.Halo 2 "Metropolis"

.

2552October20John-117 rendezvous with the marines from Kilo company in New Mombasa.Halo: Evolutions "Palace Hotel" page 349

.

2552October20John-117 reaches Palace Hotel where he meets a childhood friend, now a Lieutenant named Parisa.http://www.halopedia.org/ParisaHalo: Evolutions "Palace Hotel" page 368

.

2552October20A group of ODSTs led by Veronica Dare and Edward Buck are deployed to New Mombassa.http://www.halopedia.org/Halo_3_odstHalo 3: ODST "Prepare to Drop"

.

2552October20The Prophet of Regret's carrier enters slipspace above New Mombassa followed by the UNSC In Amber Clad. The resulting explosion destroys a large portion of the city.Halo 2 "Metropolis"

.

2552October20The members of Buck's ODST squad are scattered in the shockwave of the carrier's slipspace wake.Halo 3: ODST "Prepare to Drop"

.

2552October20The New Mombassa Space Tether collapses.Halo 3: ODST "Uplift Reserve"

.

2552October20ONI Alpha Site in New Mombassa is destroyed by UNSC forces to stop the Covenant from accessing it.http://www.halopedia.org/ONI_Alpha_SiteHalo 3: ODST "ONI Alpha Site"

.

2552October20Edward Buck and his squad of ODSTs respond to a distress call from Veronica Dare.Halo 3: ODST "Kikowani Station"

.

2552October20Dr. Endesha is killed in action.Halo 3: ODST "Sadie's Story"Possibly earlier.

.

2552October20The Rookie and Veronica Dare acquire Vergil, a Huragok who has assimilated the Superintendent's data.Halo 3: ODST "Data Hive"

.

2552October20Thel 'Vadam is named an Arbiter by the Prophets of Truth and Mercy.http://www.halopedia.org/ArbiterHalo 2 "The Arbiter"

.

2552October20The Arbiter destroys a band of heretics and recovers 343 Guilty Spark from a Forerunner gas mine.http://www.halopedia.org/The_ArbiterHalo 2 "The Oracle"

.

2552October20Sesa 'Refumee is killed in action.http://www.halopedia.org/Sesa_%27RefumeeHalo 2 "The Oracle"

.

2552October20Spartan Blue Team begins a 2 week deployment to repel Covenant forces around Earth.Halo: Ghosts of Onyx page 203

.

2552October21Buck's ODST squad successfully recover Vergil and transport him to safety.http://www.halopedia.org/VergilHalo 3: ODST "Coastal Highway"

.

2552October31The Battle of Onyx begins.http://www.halopedia.org/Battle_of_OnyxHalo: Ghosts of Onyx page 122See Note 9.

.

2552October31Spartan Ash-G099 establishes contact with an Onyx sentinel. It tries to eliminate them as a possible infection vector.Halo: Ghosts of Onyx page 133

.

2552October31Franklin Mendez declares emergency code Bloody Arrow.http://www.halopedia.org/Bloody_ArrowHalo: Ghosts of Onyx page 164

.

2552November2The UNSC In Amber Clad arrives at Installation 05 along with the Prophet of Regret's carrier.Halo 2 "Delta Halo"

.

2552November2The Battle of Installation 05 begins.http://www.halopedia.org/Battle_of_Installation_05Halo 2 "Delta Halo"

.

2552November2Miranda Keyes and Sergeant Johnson prepare to retrieve the activation index.Halo 2 "Delta Halo"

.

2552November2High Charity and the rest of the Covenant fleet arrives at Installation 05.Halo 2 "Regret"

.

2552November2The Prophet of Regret is killed in action.Halo 2 "Regret"

.

2552November2John-117 is captured by the Gravemind.Halo 2 "Regret"

.

2552November2The Prophet of Truth orders the Sangheili change guardianship roles with the Jiralhanae.Halo 2 "Sacred Icon"

.

2552November3Dr. Halsey and Kelly-087 arrive at Onyx.Halo: Ghosts of Onyx page 152

.

2552November3Dr. Halsey and Kelly-087 rendezvous with the Onyx survivors.Halo: Ghosts of Onyx page 165

.

2552November3With the help of AI Endless Summer, Dr. Halsey is able to send a message to Earth using the Slipspace COM probe on Onyx.Halo: Ghosts of Onyx page 182

.

2552November3Endless Summer interecepts a message from Cortana declaring emergency codes Bandersnatch and Hydra, among other information.Halo: Ghosts of Onyx page 183

.

2552November3The Arbiter is sent to Delta Halo to retrive the index before being betrayed by Tartarus. He is captured by the Gravemind.http://www.halopedia.org/Quarantine_Zone_(level)Halo 2 "Quarantine Zone"

.

2552November3Miranda Keyes and Sergeant Johnson are taken by Tartarus and the brutes.Halo 2 "Quarantine Zone"

.

2552November3The Great Schism begins.http://www.halopedia.org/Great_SchismHalo 2 "Gravemind"

.

2552November3The Gravemind talks with the Master Chief and the Arbiter.Halo 2 "Gravemind"

.

2552November3John-117 is teleported to High Charity to search for the index, while the Arbiter is sent close to the control room.http://www.halopedia.org/Gravemind_(level)Halo 2 "Gravemind"

.

2552November3The Prophet of Mercy is killed in action.Halo 2 "Gravemind"

.

2552November3The Prophet of Conviction is killed by one of his shipmasters after learning that Conviction ordered the killings of the Sangheili councilors within the Fleet of Righteous Vigilance.Halo: Evolutions "The Return"

.

2552November3The Artiber meets up with Rtas 'Vadum to try and stop Tartarus.Halo 2 "Uprising"

.

2552November3John-117 is unable to retrive the index, so he board the Forerunner dreadnought before it leaves for Earth. Cortana remains behind.http://www.halopedia.org/High_Charity_(level)Halo 2 "High Charity"

.

2552November3Tartarus forces Miranda Keyes to activate the Halo.http://www.halopedia.org/The_Great_JourneyHalo 2 "The Great Journey"

.

2552November3Tartarus is killed in action.Halo 2 "The Great Journey"

.

2552November3Installation 05 sends a message to the other installations placing them on standby mode.Halo 2 "The Great Journey"

.

2552November3Spartan Blue Team arrives in Cuba near the UNSC Centennial Orbital Elevator.Halo: Ghosts of Onyx page 206

.

2552November3Spartans Will-043, Linda-058, and Fred-104 capture the Covenant ship Bloodied Spirit and are deployed to Onyx by Terrence Hood.Halo: Ghosts of Onyx page 220

.

2552November3The UNSC Centennial Orbital Elevator is destroyed in the wake of the slipspace transition.Halo: Ghosts of Onyx page 220

.

2552November3The UNSC Dusk arrives at Delta Halo to witness the final stages of the Battle of Installation 05 and the Great Schism.http://www.halopedia.org/UNSC_DuskHalo: Ghosts of Onyx page 188

.

2552November3Voro 'Mantakree kills Ship Master Tano to prevent him from allowing the Flood onto their ship. Voro 'Mantakree takes over as Ship Master.Halo: Ghosts of Onyx page 189

.

2552November3Spartan Blue Team rendezvous with the Onyx survivors.Halo: Ghosts of Onyx page 236

.

2552November3Voro 'Mantakree is promoted to Fleet Master and sent to Onyx.Halo: Ghosts of Onyx page 234

.

2552November3A NOVA bomb detonates near Joyous Exultation causing massive amounts of damage.http://www.halopedia.org/Joyous_ExultationHalo: Ghosts of Onyx page 245

.

2552November3The Onyx survivors enter the Forerunner structures and retreat deeper underground.Halo: Ghosts of Onyx page 271

.

2552November3Onyx is discovered to be a Forerunner shield world.http://www.halopedia.org/TrevelyanHalo: Ghosts of Onyx page 276

.

2552November3Voro 'Mantakree's fleet arrives at Onyx and are attacked by the sentinels.Halo: Ghosts of Onyx page 277

.

2552November3The Dusk arrives back at Earth and is sent as part of a battlegroup to Onyx to assist the Spartans.http://www.halopedia.org/Battlegroup_StalingradHalo: Ghosts of Onyx page 287

.

2552November3The UNSC battlegroup arrives at Onyx and is destroyed during an engagement with the Covenant. The Dusk is the only ship to survive.Halo: Ghosts of Onyx page 292

.

2552November3Dante-G188 is killed in action.http://www.halopedia.org/Dante-G188Halo: Ghosts of Onyx page 309

.

2552November3The Onyx survivors destroy the sentinel production facility.Halo: Ghosts of Onyx page 324

.

2552November3The Onyx survivors retreat to the core room and are pursued by Covenant forces.Halo: Ghosts of Onyx page 345

.

2552November3Holly-G003 is killed in action.http://www.halopedia.org/Holly-G003Halo: Ghosts of Onyx page 360

.

2552November3Will-043 is killed in action.http://www.halopedia.org/William-043Halo: Ghosts of Onyx page 361

.

2552November3The remaining Onyx survivors enter the slipspace portal at the core of Onyx into the Shield World.Halo: Ghosts of Onyx page 365

.

2552November3Kurt-051 promotes Fred-104 to Lieutenant Junior Grade before sacrificing himself to destroy the Covenant forces at the Onyx core.Halo: Ghosts of Onyx page 367

.

2552November3Kurt-051 is killed in action.http://www.halopedia.org/Kurt_AmbroseHalo: Ghosts of Onyx page 372

.

2552November3The Battle of Onyx ends.Halo: Ghosts of Onyx page 378

.

2552November4The Onyx survivors bury William and Dante inside the Shield World.Halo: Ghosts of Onyx page 378

.

2552November4The Gravemind begins to infiltrate Cortana causing her to break down.Halo: Evolutions "Human Weakness" page 371"[...] Seventeen hours after exfiltration [...]" potentially day after November 3 when John-117 leaves High Charity.

.

2552November8The Prophet of Truth arrives in the Sol system and heads towards Earth.http://www.halopedia.org/Prophet_of_Truth#Assault_on_Earthhttp://halo.bungie.net/news/content.aspx?type=topnews&cid=16989

.

2552November8 -- 17The Battle of Mare Erythraeum takes place on Mars. Colonel Ackerson is captured by Jiralhanae.http://www.halopedia.org/Battle_of_Mare_ErythraeumHalo: Uprising

.

2552November8 -- 17Colonel Ackerson tells the Brutes about a Forerunner artifact called They Key of Osanalan in Cleveland, Ohio. A ploy to save his brother Ruwan.http://www.halopedia.org/Key_of_OsanalanHalo: Uprising

.

2552November8 -- 17Covenant forces search for the key in Cleveland. Ruwan Ackerson devises a plan with Sergeant Twyker.Halo: Uprising

.

2552November8 -- 17Ruwan Ackerson is injected with an organic tracking material and goes with the Covenant to see the Prophet Minister of Inquisition.Halo: Uprising

.

2552November8 -- 17Nassau Station destroys the Covenant ship with its MAC using Ruwan as the target.Halo: Uprising

.

2552November8 -- 17Ruwan Ackerson is killed in action.Halo: Uprising

.

2552November8 -- 17James Ackerson is killed in action.Halo: Uprising

.

2552November8 -- 17Sergeant Johnson arrives back on Earth and questions the Huragok Vergil about the artifact the Prophet of Truth is digging up near Voi.Halo 3: ODST

.

2552November17The Forerunner dreadnought enters Earth's atmosphere and John-117 jumps out and lands near Mount Kilimanjaro.http://halo.bungie.net/news/content.aspx?type=topnews&cid=16989

.

2552November17Sergeant Johnson and the Arbiter locate the Master Chief in the jungle.Halo 3 "Arrival"

.

2552November17The Master Chief, Sergeant Johnson, and the Arbiter rendezvous with Miranda Keyes.Halo 3 "Crow's Nest"

.

2552November17The dreadnought lands on the Forerunner artifact on Earth and opens a slipspace portal.http://www.halopedia.org/Portal_at_VoiHalo 3 "Flood Gate"

.

2552November17Covenant forces enter the portal to Installation 00 at the same time a Flood infected ship crashes into Earth.http://www.halopedia.org/Unidentified_Flood-captured_battlecruiserHalo 3 "Flood Gate"

.

2552November17The Sangheili Fleet of Retribution arrives to reinforce the UNSC and glasses the area where the Flood ship landed.http://www.halopedia.org/Fleet_of_RetributionHalo 3 "Flood Gate"

.

2552November17John-117, along with some UNSC and Sangheili forces, enter the portal to Installation 00.Halo 3 "The Ark"

.

2552December11The Battle of Installation 00 begins.http://www.halopedia.org/Battle_of_Installation_00Halo 3 "The Ark"Halo 3 "Heroes Never Die: Fortitude"

.

2552December11The Flood infested High Charity arrives at Installation 00.Halo 3 "The Covenant"

.

2552December11The Prophet of Truth attempts to activate the Halo Array before being stopped by John-117 and the Arbiter.http://www.halopedia.org/The_Covenant_(level)Halo 3 "The Covenant"

.

2552December11Miranda Keyes is killed in action.Halo 3 "The Covenant"

.

2552December11The Prophet of Truth is killed in action.Halo 3 "The Covenant"

.

2552December11It is discovered that the Ark's foundry has been creating a replacement for Installation 04.http://www.halopedia.org/Installation_04BHalo 3 "The Covenant"

.

2552December11The Flood infested High Charity crashes on Installation 00.http://www.halopedia.org/High_Charity#After_the_Flood_invasionHalo 3 "The Covenant"

.

2552December11John-117 travels to the crashed High Charity and rescues Cortana, who still has the activation index for Installation 04.http://www.halopedia.org/Cortana_(level)Halo 3 "Cortana"

.

2552December11John-117, the Arbiter, and Avery Johnson travel to Installation 04 to activate the ring and destroy the Flood.http://www.halopedia.org/Halo_(Halo_3_level)Halo 3 "Halo"

.

2552December11Avery Johnson is killed in action.Halo 3 "Halo"

.

2552December11343 Guilty Spark is destroyed.http://www.halopedia.org/343_Guilty_SparkHalo 3 "Halo"

.

2552December11Installation 04 is activated. It severely damages Installation 00 and destroys the Flood infection. The slipspace portal collapses as the Forward Unto Dawn enters.Halo 3 "Halo"

.

2552December11John-117 enters cryo-sleep until he is needed again.Halo 3 "Halo"

.

2552December23The Arbiter, Thel 'Vadam returns to Earth in the front half of the Dawn and crashes into the Indian Ocean.Halo 3 "Halo"

.

2552December30Codename: SURGEON sends a message to Codename: USUAL SUSPECTS entitled "Historical/Psychological Analysis of Cole, Preston J."http://www.halopedia.org/The_Impossible_Life_and_the_Possible_Death_of_Preston_J._ColeHalo: Evolutions "The Impossible Life and Possible Death of Peston J. Cole" page 413

.

2553JanuaryN/ASerin Osman meets with Avu Med 'Telcam to broker a deal of providing weapons to him.Halo: Glasslands page 23No date, but before January 26

.

2553JanuaryN/ASpartan Musa-096 gathers and meets with a group of senior UNSC brass to discuss the creation of the Spartan-IV program.Halo: Initiation Page 7

.

2553JanuaryN/ASpartan Jun-A266 meets with Corporal Sarah Palmer and offers her the chance to become a Spartan.Halo: Initiation Page 28

.

2553JanuaryN/AA group of rebels plot to steal the UNSC Infinity.Halo: Initiation Page 29

.

2553JanuaryN/ASarah Palmer and 4 others undergo 3 weeks of surgeries to become Spartan-IVs.Halo: Initiation Page 32-33

.

2553January~26Dr. Ruth Charet gives her inaugural address after her election as President of the Unified Earth Government.Halo: Glasslands page 43Speech is the opening quote to Chapter 2. However, there is no exact date. The chapter begins on January 26 so it is assumed to be near that day.

.

2553January26Margaret Parangosky forms the black ops cell Kilo-Five.http://www.halopedia.org/Kilo-FiveHalo: Glasslands page 52

.

2553January26Jul 'Mdama attends a kaidon assembly to hear the Arbiter speak.Halo: Glasslands page 59

.

2553January26Kilo-Five is gathered together for the first time in Sydney and are briefed by Parangosky.Halo: Glasslands page 65

.

2553January27Relon's keep on Sangheilios is attacked by The Servants of Abiding Truth.Halo: Glasslands page 93

.

2553January~27Kilo-Five established contact with Mike Spenser.Halo: Glasslands page 114No exact date, may be slightly later

.

2553January~27Kilo-Five meets with Avu Med 'Telcam to supply weapons.Halo: Glasslands page 129No exact date, may be slightly later

.

2553January~27Kilo-Five encounters Tom Muir, a survivior from the glasslands on New Llanelli.Halo: Glasslands page 131No exact date, may be slightly later

.

2553January~27Jul 'Mdama and Forze visit The Servants of Abiding Truth in Ontom.Halo: Glasslands page 138No exact date, may be slightly later

.

2553January~28Kilo-Five extracts Mike Spenser from the mining colony Reynes.Halo: Glasslands page 154

.

2553January31Dr. William Arthur Iqbal sends a message to his colleagues, concerning the ongoing study of Forerunner artifacts.Halo: Evolutions "From the office of Dr. William Arthur Iqbal" page 516

.

2553FebruaryN/AJul 'Mdama, 'Telcam, and a group of Sangheili liberate the frigate Unflinching Resolve from the shipyard above Sangheilios.Halo: Glasslands page 199Early February

.

2553FebruaryN/AParangosky receives a message from the UNSC Glamorgam regarding a cyclically fluctuating anomoly 5,000km from the Onyx coordinates.Halo: Glasslands page 230

.

2553FebruaryN/AKilo-Five recovers a Huragok named Requires Adjustment from the Jiralhanae onboad the vessel Piety.Halo: Glasslands page 235

.

2553FebruaryN/AJohn-117 is officially declared Missing In Action.Halo: Glasslands page 252

.

2553FebruaryN/AKilo-Five captures Jul 'Mdama.Halo: Glasslands page 300

.

2553FebruaryN/AThe Onyx survivors establish contact with Admiral Parangosky.Halo: Glasslands page 336

.

2553FebruaryN/ATerrence Hood visits Sanghelios to meet with Thel 'Vadam to formalize a peace treaty with the Sangheili.Halo: Glasslands page 358

.

2553FebruaryN/AThe Onyx Survivors, with the help of a group of Huragok, bring the Dyson Sphere into real-space.Halo: Glasslands page 375

.

2553FebruaryN/ADr. Halsey is arrested by Serin Osman.http://www.halopedia.org/Catherine_Halsey#ArrestedHalo: Glasslands page 386

.

2553FebruaryN/AONI establishes research facility Trevelyan inside the Shield World.Halo: Glasslands page 397

.

2553FebruaryN/AJul 'Mdama is transferred to Trevelyan.Halo: Glasslands page 397

.

2553FebruaryN/AThe 5 new Spartan-IVs undergo a training exercise which results in 4 of them being neutralized. They are briefed on the importance of teamwork by Musa-096.Halo: Initiation Page 35-39Assumed February due to the 3 weeks of surgeries and days spent learning to walk again before the training exercise.

.

2553FebruaryN/AIlsa Zane and the rebels take control of Infinity.Halo: Initiation Page 48

.

2553FebruaryN/AThe crew aboard Infinity clear the ship of rebels. Ilsa Zane is picked up by a Prowler of unknown origin.Halo: Initiation Page 70

.

2553March3Terrence Hood presides over a ceremony in Kenya to officially end the Human-Covenant war and pay homage to the fallen.Halo 3 "Epilogue"

.

2553MarchN/ASerin Osman is briefed by Black Box on Infinity.Halo: Glasslands page 421

.

2553MarchN/AEvan Phillips visits Sangheilios on an invitation from the Arbiter.Halo: Glasslands page 423After March 3rd

.

2553MarchN/ACatherine Halsey is debriefed by Admiral Parangosky on UNSC Research Station Ivanoff.Halo: Glasslands page 428

.

2553MarchN/AEvan Phillips is taken to the temple of The Servants of Abiding Truth by Avu Med 'Telcam.Halo: Glasslands page 455

.

2553MarchN/AThe Brutes in Ontom fight back against the Elites.Halo: The Thursday War page 17

.

2553MarchN/AKilo-Five learns that Naomi-010's father is a terrorist.Halo: The Thursday War page 28

.

2553MarchN/AAdmiral Parangosky performs an inspection of Infinity under construction.Halo: The Thursday War page 45

.

2553MarchN/AEvan Phillips begins exploring the temple of The Servants of Abiding Truth.Halo: The Thursday War page 84

.

2553MarchN/ARear Admiral Saeed Shafiq issues a statement saying he wants Huragok on every UNSC ship by 2557.Halo: The Thursday War page 94May not be the exact time, this is just where it is in the novel

.

2553MarchN/ATelcam begins his assault on Vadam.Halo: The Thursday War page 113

.

2553MarchN/AKilo-Five lands on Sangheilios to recover Evan Phillips.Halo: The Thursday War page 126

.

2553MarchN/ADr. Magnusson begins to feed Jul 'Mdama the genetically modified irukan and colo meat.Halo: The Thursday War page 134

.

2553MarchN/AEvan Phillips activates a teleporter in the temple and is teleported to the state of Acroli.Halo: The Thursday War page 165

.

2553MarchN/AKilo-Five recover Evan Phillips ane leave Acroli.Halo: The Thursday War page 245

.

2553MarchN/AInfinity arrives at Sangheilios to provide support to the Arbiter.Halo: The Thursday War page 247

.

2553MarchN/AInfinity provides support to the Arbiter by defending Vadam from The Servants of Abiding Truth.Halo: The Thursday War page 305

.

2553MarchN/AKilo-Five extracts 'Telcam from Sangheilios.Halo: The Thursday War page 316

.

2553MarchN/ARaia 'Mdama is killed in action.Halo: The Thursday War page 331

.

2553MarchN/AForze 'Mdama is killed in action.Halo: The Thursday War page 331

.

2553MarchN/AJul 'Mdama escapes from Trevelyan through a portal to Kelekos.Halo: The Thursday War page 400

.

2553MarchN/AIrena Magnusson is arrested and replaced as director of the research facility Trevelyan by Hugo Barton.Halo: The Thursday War page 411

.

2553MarchN/AJul 'Mdama exits the teleporter on the Sangheili colony world Hesduros.Halo: The Thursday War page 412

.

2553MarchN/AKilo-Five arrive on Venezia to search for Staffan Sentzke.Halo: The Thursday War page 420

.

2553AprilN/ASerin Osman is promoted to Rear Admiral.Halo: Glasslands page 413

.

2554N/AN/AJul 'Mdama and his followers discover the Shield World Requiem.Halo Waypoint Terminal Video

.

2554December15Dr. Halsey files an audio log on Ivanoff Station regarding the similarities between the Composer and a UNSC AI Matrix compiler.http://www.halopedia.org/Halo_4_audio_logsHalo 4 "Composer" Audio Log

.

2555N/AN/ATomas Navarro enlists with the UNSC Marine Corps.http://www.halopedia.org/Tomas_NavarroHalo 3: Believe "Enemy Weapon"

.

2555N/AN/AMJOLNIR Rogue variant is produced.http://www.halopedia.org/RogueHalo 4

.

2556September25A musical event, Believe, takes place at the UNSC Symphony Hall in memorial to Spartan John-117 and his service to the UNSC.http://i.imgur.com/xoquv0z.jpg

.

2556November7Approximate date that Cortana begins to descend into rampancy.7 years after Cortana is put into service

.

2556November7Approximate date that Cortana recounts the events of Origins I and II from Halo: Legends.Halo Legends "Origins I" and "Origins II"Approximate date

.

2557February28The UNSC Infinity is commissioned into service.http://www.halopedia.org/UNSC_InfinityHalo 4 Commisioning trailer

.

2557July21The UNSC Forward Unto Dawn arrives at Requiem. John-117 is awoken from 4 years in cryo sleep.http://www.halopedia.org/Halo_4Halo 4 "Dawn"

.

2557July21-??John-117 and Cortana crash land on Reqiuem.Halo 4 "Requiem"

.

2557July21-??The Didact is accidentally released from his Cryptum by John-117.http://www.halopedia.org/Didact#Reawakening_on_RequiemHalo 4 "Forerunner"

.

2557July21-??UNSC Infinity crash lands on Requiem due to the influence of the Didact.Halo 4 "Infinity"

.

2557July21-??John-117 encounters a Librarian AI who accelerates his evolution to become immune to the effects of the Composer.Halo 4 "Reclaimer"

.

2557July21-??Conan doesn't like moving things.Halo 4 "Shutdown"

.

2557July21-??The Didact takes command of his flagship Mantle's Approach and leaves Requiem. John-117 and Cortana follow in a Covenant vessel.http://www.halopedia.org/Mantle%27s_ApproachHalo 4 "Shutdown"

.

2557July21-??The Didact takes the Composer from Ivanoff Station and composes all the humans aboard the station.http://www.halopedia.org/Halo_4#The_ComposerHalo 4 "Composer"

.

2557July21-??The Didact jumps to Earth with John-117 and Cortana in tow.Halo 4 "Midnight"

.

2557July21-??Thomas Lasky is promoted to Captain of the Infinity.Halo 4 "Midnight"

.

2557July21-??With help from the Infinity, John-117 and Cortana enter the Didact's ship with a nuclear bomb and the intent to destroy it.Halo 4 "Midnight"

.

2557July21-??The Didact activates the Composer and aims it at New Pheonix.Halo 4 "Midnight"

.

2557July21-??John-117 knocks the Didact into a slipspace portal.Halo 4 "Midnight"

.

2557July21-??John-117 activates the nuclear bomb and destroys the Composer and the Didact's flagship.Halo 4 "Midnight"

.

2557July21-??Using the last of her power, Cortana envelopes John-117 in a shield of hard light.Halo 4 "Midnight"

.

2557July21-??Cortana is destroyed.Halo 4 "Midnight"

.

2557July21-??John-117 is recovered from the debris field and taken about the Infinity.Halo 4 "Midnight"

.

2557July21-??UNSC pelicans descend on New Phoenix to survey the damage.Halo 4 "Epilogue"

.

2557July21-??For the first time in years, the Master Chief has his armor removed on Infinity.Halo 4 "Epilogue"

.

2557December5UNSC AI Roland is activated to serve on the UNSC Infinity.Halo 4 Essential Visual Guide Page 19

.

2558February6Commander Sarah Palmer sends a letter to each Spartan-IV assigned to the UNSC Infinity.Halo 4 Limited Edition

.

2558February6Infinity returns to Requiem to establish research facilities on the Shield World.http://www.halopedia.org/Spartan_OpsSpartan Ops S01E01See Note 7. // https://twitter.com/HaloWaypoint/status/431457309886144512

.

2558February7Infinity arrives at Requiem and deploys Spartan fireteams to the surface.Spartan Ops S01E01https://twitter.com/HaloWaypoint/status/431970669371199488

.

2558FebruaryN/AFireteam Crimson discovers a Forerunner artifact and transport it to Infinity.http://www.halopedia.org/Requiem_translocation_artifactSpartan Ops S01E01

.

2558FebruaryN/AThe Forerunner artifact shuts down power on Infinity.Spartan Ops S01E02

.

2558FebruaryN/ADr. Henry Glassman is pulled into the Forerunner artifact.Spartan Ops S01E02

.

2558FebruaryN/AFireteam Crimson investigates the disappearance of Science Team Gagarin.Spartan Ops S01E02

.

2558FebruaryN/ADr. Halsey arrives at Infinity to study the Forerunner artifact.Spartan Ops S01E03

.

2558FebruaryN/AHenry Glassman is brought before Jul 'Mdama.Spartan Ops S01E03

.

2558FebruaryN/AFireteam Crimson hunt down and kill Parg Vol.http://www.halopedia.org/Parg_VolSpartan Ops S01E03

.

2558FebruaryN/ASpartan Thorne questions Dr. Halsey about the Spartan-II program.Spartan Ops S01E04

.

2558FebruaryN/ADr. Halsey is contacted on her data pad by an intelligence offering information.Spartan Ops S01E04

.

2558FebruaryN/AThomas Lasky learns that Jul 'Mdama is on Requiem.Spartan Ops S01E04

.

2558FebruaryN/AFireteam Crimson attempt to assassinate Jul 'Mdama but are unsuccessful.Spartan Ops S01E04

.

2558FebruaryN/AFireteam Crimson recover "The Didact's Gift" for study.Spartan Ops S01E04

.

2558FebruaryN/AFireteam Majestic secure and deliver "The Didact's Gift" and transport it to Infinity.Spartan Ops S01E05

.

2558FebruaryN/A"The Didact's Gift" is discovered to have human memories from New Phoenix on it.Spartan Ops S01E05

.

2558FebruaryN/ADr. Halsey is taken into custody for talking with the intelligence on her data pad.Spartan Ops S01E05

.

2558FebruaryN/ADr. Glassman activates the shrine.Spartan Ops S01E05

.

2558FebruaryN/ASpartan Thorne is pulled into the Forerunner artifact.Spartan Ops S01E05

.

2558FebruaryN/AInfinity scientists continue to study the Requiem teleportation network.Spartan Ops S01E05

.

2558FebruaryN/AFireteam Crimson is sent to locate Spartan Thorne.Spartan Ops S01E05

.

2558FebruaryN/ASpartan Thorne has been detected alive on Requiem.Spartan Ops S01E06

.

2558FebruaryN/ADr. Glassman escapes from Jul 'Mdama with the help of Thorne. Gek follows in pursuit.Spartan Ops S01E06

.

2558FebruaryN/AFireteam Crimson is sent to shut down a Covenant Harvester.Spartan Ops S01E06

.

2558FebruaryN/ADr. Halsey uses the phrase "Undid Iridium" to override AI Roland.Spartan Ops S01E07

.

2558FebruaryN/ADr. Halsey learns that John-117 is still alive.Spartan Ops S01E07

.

2558FebruaryN/ADr. Halsey contacts Jul 'Mdama but is interrupted and place under arrest again.Spartan Ops S01E07

.

2558FebruaryN/APromethean Knights infiltrate Infinity.Spartan Ops S01E07

.

2558FebruaryN/AAll Spartan Fireteams are recalled to Infinity to defend against the Promethean invaders.Spartan Ops S01E07

.

2558FebruaryN/AWith the help of Fireteam Majestic, Gek is killed. Thorne and Dr. Glassman are saved.Spartan Ops S01E08

.

2558FebruaryN/ACaptain Lasky learns that the Forerunner artifact is holding Infinity in place.Spartan Ops S01E08

.

2558FebruaryN/ADr. Halsey is abducted by Promethean Knights.Spartan Ops S01E08

.

2558FebruaryN/AFireteam Majestic recovers a map of Requiem from Gek.Spartan Ops S01E08

.

2558FebruaryN/ACaptain Lasky is ordered to eliminate Dr. Halsey by Admiral Serin Osman.Spartan Ops S01E08

.

2558FebruaryN/ADr. Halsey deactivates the protective shield around the shrine and enters it.Spartan Ops S01E08

.

2558FebruaryN/AFireteam Crimson assists Dr. Glassman in decoding the map taken from Gek.Spartan Ops S01E08

.

2558FebruaryN/ACommander Palmer leaves Infinity to assassinate Dr. Halsey.Spartan Ops S01E09

.

2558FebruaryN/ACaptain Lasky asks Fireteam Majestic to rescue Dr. Halsey.Spartan Ops S01E09

.

2558FebruaryN/AThe Librarian tells Dr. Halsey to take the Janus Key to the Absolute Record.Spartan Ops S01E09

.

2558FebruaryN/ADr. Halsey gives Thorne one half of the Janus Key.Spartan Ops S01E09

.

2558FebruaryN/ACommander Palmer shoots Dr. Halsey in the shoulder in an attempt to assassinate her.Spartan Ops S01E09

.

2558FebruaryN/AJul 'Mdama escapes with Dr. Halsey,Spartan Ops S01E09

.

2558FebruaryN/ASpartan Fireteams are deployed to search for Dr. Halsey.Spartan Ops S01E09

.

2558FebruaryN/AJul 'Mdama sets Requiem on a collision course with the nearby star.Spartan Ops S01E10

.

2558FebruaryN/AFireteams Majestic and Crimson are dispatched to shut down the Forerunner artifacts.Spartan Ops S01E10

.

2558FebruaryN/AThe Covenant depart Requiem.Spartan Ops S01E10

.

2558FebruaryN/AFireteam Crimson is sent to locate the replacement Harvester power supply.Spartan Ops S01E10

.

2558FebruaryN/AFireteam Crimson successfully shuts down the first Forerunner artifact.Spartan Ops S01E10

.

2558FebruaryN/AFireteam Majestic successfully shuts down the second Forerunner artifact.Spartan Ops S01 Epilogue

.

2558FebruaryN/AInfinity is freed from Requiem's influence.Spartan Ops S01 Epilogue

.

2558FebruaryN/AFireteams Majestic and Crimson rendezvous with Infinity.Spartan Ops S01 Epilogue

.

2558FebruaryN/ARequiem collides with the nearby star and explodes.Spartan Ops S01 Epilogue

.

2558FebruaryN/AInfinity successfully jumps away from Requiem to safety.Spartan Ops S01 Epilogue

.

2558FebruaryN/ADr. Glassman reveals the UNSC only has one half of the Janus Key.Spartan Ops S01 Epilogue

.

2558FebruaryN/AIt is revealed that Dr. Halsey lost her arm due to being shot by Commander Palmer.Spartan Ops S01 Epilogue

.

2558FebruaryN/ADr. Halsey has been taken by Jul 'Mdama and states she wants revenge.Spartan Ops S01 Epilogue

.

2558March3Lasky and Palmer attend a meeting of the Security Council in Sydney on Earth.Halo: Escalation #1 Page 6

.

2558March5Admiral Hood, Captain Lasky, Palmer, the Arbiter, and Chieftan Lydus meet on the planet Ealen IV to negotiate the fighting between Jiralhanae and Sangheili.Halo: Escalation #1 Page 16

.

2558March5The negotiations are interrupted by Covenant remnant factions who attack them and jam communications.Halo: Escalation #1 Page 18

.

2558March5Vladimir Scruggs kills his fireteam before meeting the other survivors.Halo: Escalation #2 Page 22

.

2558March5Spartan Ray successfully fixes communications.Halo: Escalation #3 Page 2

.

2558March5Scruggs turns on his group and takes Admiral Hood hostage.Halo: Escalation #3 Page 4

.

2558March5Vladimir Scruggs is killed in action.Halo: Escalation #3 Page 11

.

2558March5Paul DeMarco and his team are killed in action.Halo: Escalation #3 Page 19

.

2558March5The survivng members of the negotiations make it safely off the planet to their ships.Halo: Escalation #3 Page 20

.

2558March8Lasky goes on an undercover mission to discover the leak in the UNSC.Halo: Escalation #4

.

2558March10Lasky meets with an old friend Petra Janecek to enlist her help in finding the leak in the UNSC.Halo: Escalation #4

.

2558March11Infinity discovers some drifting ships that belonged to the UNSC Spirit of Fire.Halo: Escalation #4

.

2558March12Hood meets with Lasky to discuss how their meeting location was compromised.Halo: Escalation #3 Page 22"One week later" after March 5, 2558

.

2559N/AN/AA Sangheili Shipmaster returns to the human colony Kholo.http://www.halopedia.org/The_ReturnHalo: Evolutions "The Return" page 488

.

2567N/AN/ATomas Navarro retires from the UNSC.Halo 3: Believe "Enemy Weapon"

.

2573N/AN/ARoland Huffman retires from the UNSC.Halo 3: Believe "Enemy Weapon"

.

2573N/AN/ANiraj Shah retires from the UNSC.Halo 3: Believe "Gravesite"

.

2581N/AN/APawel Czernek retires from the UNSC at the rank of Major.Halo 3: Believe "Museum"

.

2589July7Dr. Halsey delivers a eulogy to Spartan-B312 (Noble 6) on Reach.http://www.halopedia.org/Eulogy_to_SPARTAN-B312Halo: Reach "Epilogue"

.

2607N/AN/AThe John-117 monument began contruction to commemorate the Spartan's contribution to mankind.Halo 3: Making of the John-117 Monumenthttp://www.youtube.com/watch?v=TFBBX33YTus

.

2607N/AN/AThe Museum of Humanity began construction.Halo 3: Making of the John-117 Monumenthttp://www.youtube.com/watch?v=TFBBX33YTus

.

2610N/AN/AThe John-117 monument is completed and placed in the Museum of Humanity to commemorate his selfless dedication to Humanity.Halo 3: Making of the John-117 Monumenthttp://www.youtube.com/watch?v=TFBBX33YTus

.

2610January15A collection of historical artifacts from the Fall of Reach are sent from a former ONI agent from Reach to his cousin on Earth.Halo: Reach Legendary Editionhttp://www.halopedia.org/File:Journal_Package_Letter.jpg