oregon country
1859
No, the Oregon Country was not added to the U.S. in 1803. It was acquired through a series of treaties and negotiations, primarily culminating in the Oregon Treaty of 1846, which established the U.S.-Canada border along the 49th parallel. The Oregon Country encompassed a large area of the Pacific Northwest, and its status was a point of contention between the U.S. and Britain prior to that treaty.
Oregon Countrythe Oregon Countrythe Oregon Country
Great Britain
Great Britain
oregon country
Britain
Russia claimed it.
It was an agreement between Great Britain and the US that detailed the boundary between Oregon Country and Canada.
Russia claimed it.
Robert Gray