U.S. Secession Map 1861: States Before and After Fort Sumter #250382 (License: Personal Use)

The map uses color coding to distinguish states that seceded before Fort Sumter (red), after Fort Sumter (orange), slave states loyal to the Union (magenta), and free states or territories (green). It includes numbered order of secession for the first eleven Confederate states and notes key territories like Kansas (1861) and Colorado Territory (1861). Major geographical features such as the Mississippi River, Great Lakes, and Gulf of Mexico provide spatial context.

Used in educational history pages, museum exhibits, and Civil War curriculum resources to illustrate the geopolitical fragmentation preceding the American Civil War; matches user intent for historical research, teaching aids, or timeline visualization.