Territorial evolution of Idaho

The following timeline 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
• Historial 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^[1]
  • 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