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Outline of Washington territorial evolution
The following outline traces the territorial evolution of the U.S. State of Washington.
An enlargeable map of the United States after the
Treaty of Paris
in 1789
An enlargeable map of the United States after the
Anglo-American Convention of 1818
An enlargeable map of the United States after the
Oregon Treaty
of 1846
An enlargeable map of the United States after the Washington Organic Act in 1853
An enlargeable map of the United States after Washington Statehood in 1889
An enlargeable map of the United States as it has been since 1959
