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  2. Oregon Country - Wikipedia

    en.wikipedia.org/wiki/Oregon_Country

    Oregon Country was the American name, while the British used Columbia District for the region. [1] British and French Canadian fur traders had entered Oregon Country prior to 1810 before the arrival of American settlers from the mid-1830s onwards, which led to the foundation of the Provisional Government of Oregon.

  3. List of Washington (state) area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Washington_(state...

    Original statewide area code until 1957, when area code 509 was created for Eastern Washington. Further splits in 1995 to create area code 360 for most of Western Washington, and 1997 to form area codes 253 and 425. 564 will be added to the 206 area in 2025. 509: January 1, 1957 [1]

  4. Provisional Government of Oregon - Wikipedia

    en.wikipedia.org/wiki/Provisional_Government_of...

    Signed on June 15, 1846, the Oregon Treaty ended the dispute between the United Kingdom of Great Britain and Ireland and the United States, by dividing the Oregon Country at the 49th parallel. [7] This extended U.S. sovereignty over the region, but effective control would not occur until government officials arrived from the United States.

  5. History of Washington (state) - Wikipedia

    en.wikipedia.org/wiki/History_of_Washington_(state)

    The federal Oregon Territory (August 1848 to February 1859), carved out of the American southern portion of the former Oregon Country (1818-1846) with the Oregon Treaty of June 15, 1846, signed in the federal national capital city of Washington, D.C., between the United States and Great Britain (old United Kingdom / British North America of the ...

  6. Oregon Territory - Wikipedia

    en.wikipedia.org/wiki/Oregon_Territory

    The competing interests of the two foremost claimants were addressed in the Treaty of 1818, which sanctioned a "joint occupation", by British and Americans, of a vast "Oregon Country" (as the American side called it) that comprised the present-day U.S. states of Oregon, Washington, and Idaho, parts of Montana and Wyoming, and the portion of ...

  7. Outline of Washington territorial evolution - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Washington...

    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 Washington: Unorganized territory created by the Oregon Treaty, 1846-1848; Territory of Oregon, 1848-1859; Territory of Washington, 1853-1889 [1]

  8. History of Oregon - Wikipedia

    en.wikipedia.org/wiki/History_of_Oregon

    The term "Oregon" may refer to: Oregon Country (1818-1846), a large region in the Pacific Northwest and western North America explored, settled and temporarily jointly occupied by both Americans and the British (and generally known to Canadians as the Columbia District, prior to the formation of the Colony of British Columbia later becoming a ...

  9. Outline of Oregon territorial evolution - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Oregon...

    Oregon Treaty of 1846; Historical political divisions of the United States in the present state of Oregon: Unorganized territory created by the Oregon Treaty, 1846–1848; Territory of Oregon, 1848–1859 Oregon Organic Act, August 14, 1848 [1] Northern portion of Oregon Territory incorporated in new Washington Territory, March 2, 1853