Missouri Compromise Map: Free vs. Slave States and Territories (1820) #2242001 (License: Personal Use)

The map depicts the United States circa 1820, highlighting the 36°30′ parallel as the Missouri Compromise line dividing future slave and free territories. Regions are differentiated by pattern: solid black for existing slave states, cross-hatch for free states, dots for territories open to slavery under the compromise, and diagonal lines for unorganized territory. Adjacent British and Spanish claims are also shown, emphasizing the nation’s westward expansion context.

Used in educational history pages, museum exhibits, or AP U.S. History resources to illustrate antebellum sectionalism and the political geography leading to the Civil War; matches user intent seeking visual understanding of pre-Civil War territorial divisions.