Proper noun
the Oregon Treaty
(historical) The 1846 binding agreement between the United Kingdom and the United States, which created the boundary between Oregon Country and British Columbia.
Most of these were jointly claimed as the Oregon Country by the United States from 1818 until the 49th parallel was established as the international boundary west of the Rockies by the Oregon Treaty of 1846. Source: Internet
The 1846 Oregon Treaty established the 49th parallel as the boundary between Canada and the U.S. west to the middle of the Strait of Georgia, and then by the main channel south to the Strait of Juan de Fuca and from there westwards to the open ocean. Source: Internet
The Oregon Treaty of 1846 divided the Oregon Country along the 49th parallel, the original American proposal. Source: Internet
While some British interests, especially the Hudson's Bay Company, fought for a boundary along the Columbia River, the Oregon Treaty of 1846 set the boundary at the 49th parallel. Source: Internet
These northern routes were largely abandoned after Britain ceded its claim to the southern Columbia River basin by way of the Oregon Treaty of 1846. Source: Internet