Saturday, July 25, 2015

Old School Data Visualization: cloropleth, slavery

RantWoman reprints this tweet here with hope of easily finding it again should she want to.

E. Ariño de la Rubia
155 year old cloropleth map of percentage of slaves by U.S. county in 1860
2:26 PM - 25 Jul 2015
 
 
 
 
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