Oregon Treaty and Settlement of the Pacific Northwest (1846–1859)

1. Champoeg vote backs provisional government

   May 2, 1843Labels: Champoeg, Willamette Valley, Provisional Government

   • Oregon Enc

2. Organic Act establishes Oregon Provisional Government

   Jul 5, 1843Labels: Organic Act, Oregon Provisional

   • Oregon Enc
   • Wikisource

3. Oregon Treaty signed in Washington, D.C.

   Jun 15, 1846Labels: Oregon Treaty, United States, Great Britain

   • Oregon Enc
   • Britannica

4. U.S. Senate approves the Oregon Treaty

   Jun 18, 1846Labels: U S, Oregon Treaty

   • Oregon Enc

5. Whitman killings spark the Cayuse War

   Nov 29, 1847Labels: Whitman Massacre, Cayuse, Waiilatpu

   • HistoryLink
   • NPS Whitman

6. Congress creates the Oregon Territory

   Aug 14, 1848Labels: Oregon Territory, Congress

   • NPS
   • Congress gov CRS

7. Donation Land Claim Act takes effect

   Sep 27, 1850Labels: Donation Land, Oregon Territory

   • Britannica
   • Wikipedia

8. Washington Territory organized from Oregon Territory

   Mar 2, 1853Labels: Washington Territory, Columbia River

   • Oregon Enc
   • WA Legislature

9. Treaty of Point Elliott signed

   Jan 22, 1855Labels: Treaty of, Puget Sound

   • Washington Gov
   • NPS

10. Walla Walla, Cayuse, and Umatilla treaty signed

    Jun 9, 1855Labels: Walla Walla, Umatilla Reservation

    • Oregon Enc
    • NARA

11. Oregon Constitution approved by territorial voters

    Nov 9, 1857Labels: Oregon Constitution, constitutional convention

    • Oregon Blue Book

12. Oregon admitted as the 33rd U.S. state

    Feb 14, 1859Labels: Oregon statehood, U S

    • Congress gov CRS
    • Oregon Blue Book