Why did the Oregon Treaty happen?

A long history of dispute characterized the ownership of the Oregon Territory, which included present-day Oregon, Washington, Idaho, and portions of Montana, Wyoming, and British Columbia. Spain and Russia had surrendered their claims to the region, but the United States and Britain were active claimants in the 19th century's early years. read more

The Oregon Treaty settled the dispute between the United States and Great Britain over the area in Oregon located between the Columbia River and the 49th parallel. In 1818, both countries had agreed to a joint occupation of Oregon, and this agreement had been renewed by treaty in 1827. read more