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UNITED sTATES
1783 United States -
Period: to
Westward Expansion
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Louisiana Purchase
1803 Louisiana Purchase -
West Florida Annexation
1810, 1813 West Florida Annexation -
Red Red River Cession
1818 Red River Cession -
East Florida
1819 East Florida -
Webster Ashburton Treaty
1842 Webster Ashburton Treaty -
Texas Annexation
1845 Texas Annexation -
Oregon Territory
1846 Oregon Territory -
Mexican Cession
1848 Mexican Cession -
Gadsden Purchase
1853 Gadsden Purchase