How I created the visualization: I keyed in the acreage values from Du Bois's Georgia map, and found historical shape files and county areas from the Atlas of Historical County Boundaries at Newberry Library. From there I was able to create a map colored by the percent of land owned by blacks. I used percents instead of raw values for the color to account for the differing county sizes. I sampled the dark and light red colors from Du Bois's map to create the color gradient. I added his city annotations after looking up their coordinates on Wikipedia.