USA HISTORY

Detailed explanation-1: -This area was called the Oregon Territory by the Americans and the Columbia region by the British. The Convention of 1818 resolved some territorial disputes stemming from the War of 1812 and earlier, and resulted in an agreement for both nations to jointly occupy and administer the territory for a period of 10 years.

Detailed explanation-2: -The Convention of 1818 was a treaty between the United States and Britain that set the 49th parallel of latitude as the boundary between British North America and the US across the West. This remains the boundary today between the two nations.

Detailed explanation-3: -In June 1846, the Senate, preoccupied with war against Mexico, quickly approved the Oregon Treaty with Britain, setting the boundary at the 49th parallel.

Detailed explanation-4: -Britain ceded all territory south of the 49th parallel, including portions of the Red River Colony and Rupert’s Land (comprising parts of the present states of Minnesota, North Dakota, and South Dakota).

Detailed explanation-5: -The United States had proposed to extend the border along the same parallel to the Pacific Ocean, but Great Britain insisted that the northern border be drawn west to the Columbia River and then follow that river to the ocean. Neither side then budged, but they did agree to postpone the decision for 10 years.