Readers: A few weeks ago, I presented at the Tableau Fringe Festival EMEA about how Abraham Lincoln used the 1861 U.S. Coast Survey Map to help him understand slavery in the United States. This map, produced by the US Coast Survey in 1861, drew on census reports from 1860 – the last year that the US government collected census data […]

Readers: Last Friday, I was given the opportunity to present at the Tableau Fringe Festival – EMEA. I wanted to share my presentation slides with you and have posted them sequentially in this blog post. I want to thank the #TFFEMEA team for providing me this opportunity and for providing 12 hours of pure bliss content […]

This chart, digitized by the Library of Congress, depicts major battles, troop losses, skirmishes, and other events in the American Civil War. (Click on the image at the end of this blog to arrive at a zoomable version, or visit the LOC’s website.). Here are some key points to note in the chart. This chart […]