Missouri Compromise Map: Free vs. Slave States and Territories in 1820 #2242010 (License: Personal Use)

The map depicts the United States shortly after the Missouri Compromise of 1820, which admitted Missouri as a slave state and Maine as a free state to preserve congressional balance. It clearly marks the 36°30′N latitude line-prohibiting slavery north of it in the Louisiana Purchase lands-except within Missouri itself. A disputed boundary is noted in the Northeast, reflecting unresolved territorial claims of the era.

Used in educational history pages, museum exhibits, or civics resources to explain antebellum U.S. sectional tensions; targets students, teachers, and history enthusiasts seeking visual context for pre-Civil War political geography.