Outline of Washington territorial evolution






The following outline traces the territorial evolution of the U.S. State of Washington.
Outline
- Historical international territory in the present State of Washington:
- Oregon Country, 1818-1846
- Anglo-American Convention of 1818
- Provisional Government of Oregon (extralegal), 1843-1849
- Oregon Treaty of 1846
- Oregon Country, 1818-1846
- Historical political divisions of the United States in the present State of Washington:
- Unorganized territory created by the Oregon Treaty, 1846-1848
- Territory of Oregon, 1848-1859
- Territory of Washington, 1853-1889
- State of Washington since 1889
See also
- Historical outline of Washington
- History of Washington (state)
- Territorial evolution of the United States