Tập tin:US Slave Free 1789-1861.gifFile:United_States_1789-03-1789-08.png licensed with Cc-by-2.5, Cc-by-2.5/en, GFDL, GFDL/en 2007-08-14T10:58:05Z Golbez 1000x677 (99534 Bytes) File:United
Tập tin:United States 1848-08-1849.pngDescriptionUnited States 1848-08-1849.png Map of the states and territories of the United States as it was from August 1848 to 1849. On August 14 1848, Oregon