USA HISTORY

Detailed explanation-1: -The Oregon Territory stretched from the Pacific coast to the Rocky Mountains, encompassing the area including present-day Oregon, Washington, and most of British Columbia. Originally Spain, Great Britain, Russia, and the United States claimed the territory.

Detailed explanation-2: -Which of these countries did not claim the Oregon Country? A. Russians.

Detailed explanation-3: -In the early 1800s, many Native American nations claimed the Oregon Country. Four countries did also. They were the United States, Great Britain, Spain and Russia. Many Americans wanted to be able to get to the Pacific Ocean.

Detailed explanation-4: -Both Britain and the US claimed everything west of the continental divide from as far north as Russian Alaska to as far south as Mexico (which at that time included most of present-day California). This area was called the Oregon Territory by the Americans and the Columbia region by the British.