Colonial America
Sovereignty Transitions
21 major transfers of territorial control, from the first European cessions through annexation and purchase, 1664-1898.
1664
Surrender of New Amsterdam
Dutch → British · New Netherland
1762
Treaty of Fontainebleau (1762)
French → Spanish · French Louisiana west of the Mississippi
1763
Treaty of Paris (1763)
French → British · French Louisiana east of the Mississippi / Illinois Country / Great Lakes
1780
Spanish Capture of Mobile (1780)
British → Spanish · British West Florida — Mobile District
1783
Treaty of Paris (1783)
British → American · British Colonial America east of the Mississippi
1787
Northwest Ordinance (1787)
British → American · Northwest Territory
1791
Vermont admitted to Union (1791)
new_york_state → usa_state · Vermont Republic
1792
Kentucky admitted to Union (1792)
virginia_state → usa_state · Kentucky District of Virginia
1796
Tennessee admitted to Union (1796)
north_carolina_state → usa_state · Southwest Territory (Territory South of the River Ohio)
1796
Treaty of San Lorenzo (Pinckney's Treaty) — Mississippi Territory
Spanish → American · Spanish Natchez District / Mississippi Territory
1803
Louisiana Purchase (1803)
Spanish → American · Louisiana Territory
1820
Maine admitted to Union (1820)
massachusetts_state → usa_state · District of Maine (part of Massachusetts)
1821
Adams-Onís Treaty — Florida Transfer (1821)
Spanish → American · Spanish Florida (East and West)
1821
Mexican War of Independence (1821)
Spanish → Mexican · New Spain / Provincias Internas
1836
Texas Revolution and Annexation (1836–1845)
Mexican → American · Republic of Texas
1846
Oregon Treaty (1846)
British → American · Oregon Country
1848
Treaty of Guadalupe Hidalgo (1848)
Mexican → American · Mexican Cession
1853
Gadsden Purchase (1853)
Mexican → American · Gadsden Purchase / La Mesilla
1863
West Virginia admitted to Union (1863)
virginia_state → usa_state · Trans-Allegheny Virginia
1867
Alaska Purchase (1867)
Russian → American · Russian America
1898
Annexation of Hawaii (1898)
none → American · Republic of Hawaii / Hawaiian Islands
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