What better way to start the week than with another map by Charles Joseph Minard? Cartographers and students of graphic design generally idolize Minard for his ability to translate large and complicated data sets into easily understandable formats. I have previously covered one of Minard’s other works, but this map is just as interesting and incorporates some of the same principles as his map of Napoleon’s invasion of Russia.
This map charts the numbers and destinations of emigrants from Europe, Africa, China, and South Asia for the year 1858. Minard correlates the thickness of each line with the number of emigrants it represents, with one millimeter equalling 1,500 people. He also overlays the exact number of emigrants (in thousands) over the lines themselves. Minard carefully puts divergent lines together and pulls them apart to demonstrate the flow of immigration from major ports in Europe and Asia and toward different final…
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