in 1846 the oregon territory was acquired in a compromise with
Oregon Treaty The Oregon Treaty[1] is a treaty between the United Kingdom and the United States that was signed on June 15, 1846, in Washington, D.C. Signed under the presidency of James K. Polk, the treaty brought an end to the Oregon boundary dispute by settling competing American and British claims to the Oregon Country; the area had been jointly occupied by both Britain and the U.S. since the Treaty of 1818.
Oregon Oregon (/ˈɔːrɪɡən/ ( listen)[7]) is a state in the Pacific Northwest region on the West coast of the United States. The Columbia River delineates much of Oregon's northern boundary along Washington state, while the Snake River delineates much of its eastern boundary along Idaho. The parallel 42° north delineates the southern boundary with California and Nevada. Oregon is one of only three states of the contiguous United States to have a coastline on the Pacific Ocean.