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Noteworthy Infographic Inventions from the 19th CenturyA timleine of noteworthy infographic inventions made in the 19th century, many of which are still used today with little or no modification at all.https://youtu.be/uSMLIzPuinE
Easel ly		<a href="https://easel.ly/" title="Easel Ly">Easel Ly website</a>title#2e2851
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1801Pie ChartThe first pie chart was invented by William Playfair in 1801. A pie chart is a circular graph that shows the relative contribution that different categories contribute to an overall total. A wedge of the circle represents each category’s contribution, such that the graph resembles a pie that has been cut into different sized slices. Every 1% contribution that a category contributes to the total corresponds to a slice with an angle of 3.6 degrees.

[https://www2.le.ac.uk/offices/ld/resources/numerical-data/pie-charts]
https://ds055uzetaobb.cloudfront.net/image_optimizer/dc5a1efc0b7594c7108bc5e6a14bb66566da858b.jpg<a href="https://brilliant.org/wiki/pie-chart/">Brilliant.org - Pie Charts</a>An example of a pie charthttps://ds055uzetaobb.cloudfront.net/image_optimizer/dc5a1efc0b7594c7108bc5e6a14bb66566da858b.jpg#2e2852
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1811Stacked Bar ChartThe first Stacked Bar Chart was invented by Alexander von Humboldt in 1811. A stacked bar chart, also known as a stacked bar graph, is a graph that is used to break down and compare parts of a whole. Each bar in the chart represents a whole, and segments in the bar represent different parts or categories of that whole. Different colors are used to illustrate the different categories in the bar.
[https://study.com/academy/lesson/what-is-a-stacked-bar-chart.html]		https://cloud.netlifyusercontent.com/assets/344dbf88-fdf9-42bb-adb4-46f01eedd629/68573aed-e59f-418e-98f7-36f2ae503a1f/5-stacked-bar-chart-large-opt.png<a href="https://www.smashingmagazine.com/2017/03/understanding-stacked-bar-charts/">Smashing Magazine - Understanding Stacked Bar Charts</a>An example of a stacked bar charthttps://cloud.netlifyusercontent.com/assets/344dbf88-fdf9-42bb-adb4-46f01eedd629/68573aed-e59f-418e-98f7-36f2ae503a1f/5-stacked-bar-chart-large-opt.png#2e2853
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1821Cumulative FrequencyThe first cumulative frequence graph was invented by Jean Baptiste Joseph Fourier in 1821. A cumulative frequency graph, also known as an Ogive, is a curve showing the cumulative frequency for a given set of data. The cumulative frequency is plotted on the y-axis against the data which is on the x-axis for un-grouped data. When dealing with grouped data, the Ogive is formed by plotting the cumulative frequency against the upper boundary of the class. An Ogive is used to study the growth rate of data as it shows the accumulation of frequency and hence its growth rate.[https://www.wyzant.com/resources/lessons/math/statistics_and_probability/averages/cumulative_frequency_percentiles_and_quartiles]http://cdn.pythagorasandthat.co.uk/wp-content/uploads/2014/07/cumulative-frequency-graph-759x500@2x.jpg<a href="http://www.pythagorasandthat.co.uk/cumulative-frequency">Pythagoras and that - Cumulative Frequency</a>An example of a cumulative frequency curvehttp://cdn.pythagorasandthat.co.uk/wp-content/uploads/2014/07/cumulative-frequency-graph-759x500@2x.jpg#2e2854
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1837Evolutionary TreeThe first evolutionary tree diagram was invented by Charles Darwin in 1837. Evolutionary trees, also known as phylogenetic trees, are visual representations of this branching pattern of evolution.1 A phylogenetic tree may represent the full diversity of life springing from our universal common ancestor (as does the tree above) or a single branch of the full tree of life, such as the vertebrate, fungus, or beetle lineages. Trees may include both extant and extinct organisms. As shown here, there are many ways to depict an evolutionary tree.
[https://evolution.berkeley.edu/evolibrary/article/0_0_0/evotrees_primer_02]		http://cdn.sci-news.com/images/enlarge4/image_5743e-Butterfly-Evolutionary-Tree.jpg<a href="http://www.sci-news.com/biology/butterfly-evolutionary-tree-05743.html">Sci News</a>An example of an Evolutionary Treehttp://cdn.sci-news.com/images/enlarge4/image_5743e-Butterfly-Evolutionary-Tree.jpg#2e2855
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1846Normal CurveA normal curve is a bell-shaped curve which shows the probability distribution of a continuous random variable. Moreover, the normal curve represents a normal distribution. The total area under the normal curve logically represents the sum of all probabilities for a random variable. Hence, the area under the normal curve is one. Also, the standard normal curve represents a normal curve with mean 0 and standard deviation 1. Thus, the parameters involved in a normal distribution is mean ( μ ) and standard deviation ( σ ).

[https://www.chegg.com/homework-help/definitions/normal-curve-31]		https://cdn.thinglink.me/api/image/439769059261677569/1240/10/scaletowidth<a href="https://www.thinglink.com/scene/439769059261677569"></a>An example of a normal curvehttps://cdn.thinglink.me/api/image/439769059261677569/1240/10/scaletowidth#2e2856
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1855Organizational ChartThe first organizational chart was invented by Daniel McCallum in 1855. An organizational chart shows the internal structure of an organization or company. The employees and positions are represented by boxes or other shapes, sometimes including photos, contact information, email and page links, icons and illustrations. Straight or elbowed lines link the levels together.
[https://www.lucidchart.com/pages/organizational-charts]		https://www.edrawsoft.com/templates/images/marketing-org-chart.png<a href="https://www.edrawsoft.com/template-marketing-org-chart.php">Edrawsoftc - Marketing Org Chart</a>An example of an organization charthttps://www.edrawsoft.com/templates/images/marketing-org-chart.png#2e2857
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1869Periodic TableInvented by Dmitri Mendeleev in 1869, the periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass.
The rows are called periods. The period number of an element signifies the highest energy level an electron in that element occupies (in the unexcited state), according to the Los Alamos National Laboratory. The number of electrons in a period increases as one moves down the periodic table; therefore, as the energy level of the atom increases, the number of energy sub-levels per energy level increases.
Elements that occupy the same column on the periodic table (called a "group") have identical valance electron configurations and consequently behave in a similar fashion chemically. For instance, all the group 18 elements are inert gases.

[https://www.livescience.com/25300-periodic-table.html]		http://www.natracare.com/wp-content/uploads/2016/05/periodic-table.png<a href="http://www.natracare.com/blog/periodic-table/">Natracare - Periodic Table</a>An example of the periodic tablehttp://www.natracare.com/wp-content/uploads/2016/05/periodic-table.png#2e2858
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1874Age PyramidInvented by Francis Amasa Walker in 1874, an Age Pyramid is a graph that shows the age-sex distribution of a given population. It a graphic profile of the population’s residents. Sex is shown on the left/right sides, age on the y-axis, and the percentage of population on the x-axis. Each grouping (ex: males aged 0-4) is called a cohort.
[https://populationeducation.org/what-population-pyramid/]		https://www.census.gov/content/dam/Census/newsroom/blogs/2016/06/americas-age-profile-told-through-population-pyramids/Chart-1.png<a href="https://www.census.gov/newsroom/blogs/random-samplings/2016/06/americas-age-profile-told-through-population-pyramids.html">Census Bureau - America's Age Profile</a>An example of an age pyramidhttps://www.census.gov/content/dam/Census/newsroom/blogs/2016/06/americas-age-profile-told-through-population-pyramids/Chart-1.png#2e2859
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1880Venn DiagramInvented by John Venn in 1880, a Venn diagram uses overlapping circles or other shapes to illustrate the logical relationships between two or more sets of items. Often, they serve to graphically organize things, highlighting how the items are similar and different.
[https://www.lucidchart.com/pages/venn-diagram]		https://cdn-images-1.medium.com/max/2000/1*oiTHw77Fi-x5LFMSQDlSIg.jpeg<a href="https://uxdesign.cc/ux-venn-diagrams-82e11e35570e">UXDesign.cc - UX Venn Diagrams</a>An example of a venn diagramhttps://cdn-images-1.medium.com/max/2000/1*oiTHw77Fi-x5LFMSQDlSIg.jpeg#2e2860
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1899Poverty MapCharles Booth was the first individual to invent a poverty map, which provides a detailed description of the spatial distribution of poverty and inequality within a country. It combines individual and household (micro) survey data and population (macro) census data with the objective of estimating welfare indicators for specific geographic area as small as village or hamlet.
[https://en.wikipedia.org/wiki/Poverty_map]		https://www.nashpartnership.com/wp-content/uploads/2017/12/Booth-map-2000x1147.jpg<a href="https://www.nashpartnership.com/2017/12/12/often-map-change-world/">Nash Partnership - How often does a map change the world?</a>An example of a poverty maphttps://www.nashpartnership.com/wp-content/uploads/2017/12/Booth-map-2000x1147.jpg#2e2861