Map 4 - U.S. territorial expansion 1783 - 1853, 1867, 1898, 1917 including acquisition of the respective regions' societies and peoples Alaska Purchase 1867 (from Russia) 625 CANADA Ceded to Great Britain 1818 Miles British Cession 1818 Washington Lake Superior North Dakota Oregon Treaty 1846 (Treaty with Great Britain) Montana Minnesota Lake Huron Idaho Wisconsin South Dakota Wyoming Louisiana Purchase 1803 (from France) California Colorado Boundary with Spain, 1819 Mexican Cession 1848 Kansas Oklahoma Gadsden Purchase 1853 (from Mexico) New Mexico o New York Massachusetts Connecticut ri e Pennsylvania New Jersey Maryland Delaware District of West Columbia Virginia Virginia Territory of the Thirteen States (Ceded by Great Britain) 1783 Kentucky North Carolina Tennessee South Carolina Arkansas 100 Puerto Rico Miles Mississippi Alabama Georgia Texas Texas Annexation 1845 (former Republic of Texas) Spanish Cession 1819 Puerto Rico Ceded by Spain 1898 Miles Indiana Missouri Louisiana Hawai'i Annexation 1898 (former Republic of Hawai'i) 170 eE i ta r On New Hampshire Arizona MEXICO Hawaii k La Ohio Illinois Spanish Cession 1819 e La k Michigan Iowa Nebraska Utah Nevada Vermont Lake Michi gan Oregon Maine West Florida (Spanish Cession) 1819 Florida Virgin Islands Purchased from Denmark 1916/17 Virgin Islands East Florida (Spanish Cession) 1819 1,500 Source: Adapted from Andro Linklater, The Fabric of America: How Our Borders and Boundaries Shaped the Country and Forged Our National Identity (New York: Walker, 2007), front paper. Miles GIS Services Institute for Social Science Research Arizona State University April 2008