USA HISTORY

Detailed explanation-1: -The United States and Great Britain signed the Treaty of Oregon on June 15, 1846, ending 28 years of joint occupancy of the Pacific Northwest .

Detailed explanation-2: -The Oregon Territory, 1846 Originally Spain, Great Britain, Russia, and the United States claimed the territory. In 1819, under terms of the Transcontinental Treaty, Spain ceded its claims to the territory to the United States.

Detailed explanation-3: -British leaders were similarly adverse to conflict and did not want to jeopardize their important economic relationship with the United States. 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: -In 1846 Britain and the United States signed the Oregon Treaty, extending the international border between the U.S. and what would become Canada along the 49th parallel to the Strait of Georgia, and then out the Strait of Juan de Fuca.

Detailed explanation-5: -The Western Frontier was the last great place to be settled by the U.S., and U.S. Citizens wanted that land to be theirs. The land was optimal for farming and had plenty of space to spread out from the over populated cities. U.S. Congressional Map on states that had formed from the Oregon Treaty.