The following chronology traces the territorial evolution of the U.S. state of Idaho.
Timeline Historical territorial claims of Spain in the present State of Idaho: Gran Cuenca, 1776–1821 Adams-Onis Treaty of 1819 Historical international territory in the present State of Idaho: Oregon Country, 1818–1846 Anglo-American Convention of 1818 Provisional Government of Oregon (extralegal), 1843–1849 Oregon Treaty of 1846 Historical political divisions of the United States in the present State of Idaho: Unorganized territory created by the Oregon Treaty, 1846–1848 Territory of Oregon, 1848–1859 State of Deseret (extralegal), 1849–1850 Territory of Washington, 1853–1889 Territory of Idaho, 1863-1890 State of Idaho since 1890
See also Historical outline of Idaho History of Idaho Territorial evolution of the United States Territorial evolution of Montana Territorial evolution of Nevada Territorial evolution of Oregon Territorial evolution of Utah Territorial evolution of Washington Territorial evolution of Wyoming
References
External links State of Idaho website Idaho State Historical Society Idaho History