The Distribution of Slavery in the US in 1860 [Map]

Historical map shows the distribution of slavery in the US in 1860

In 1961, the United States Coast Survey created a map showing the distribution of slavery across the US South based on data from the 1860 Census. The map was often consulted by Abraham Lincoln during the Civil War and even appeared in a 1864 painting. via OpenCulture.

Please also check out Mike Springer’s longer article on Open Culture.

Map Showing the Distribution of the Slave Population of the Southern States of the United States Compiled from the Census of 1860. Sold for the benefit of the Sick and Wounded Soldiers of the U. S. Army. By E. Hergesheimer (cartographer), Th. Leonhardt (engraver) [Public domain], via Wikimedia Commons https://commons.wikimedia.org/wiki/File%3ASlavePopulationUS1860.jpg
Map Showing the Distribution of the Slave Population of the Southern States of the United States Compiled from the Census of 1860.
Sold for the benefit of the Sick and Wounded Soldiers of the U. S. Army. By E. Hergesheimer (cartographer), Th. Leonhardt (engraver) [Public domain], via Wikimedia Commons https://commons.wikimedia.org/wiki/File%3ASlavePopulationUS1860.jpg

History: Electricity in 1920s America [Map]

Electricity in 1920s America

The Atlantic has a very interesting map of the use of electricity throughout the US in 1921. The states are resized according to their relative consumption of electricity.

As can be seen on the map, the South was at the time underdeveloped in comparison to parts of the Northeast, Midwest, and West Coast.