USA HISTORY

Detailed explanation-1: -The Territory of Oregon originally encompassed all of the present-day states of Idaho, Oregon and Washington, as well as those parts of present-day Montana and Wyoming west of the Continental Divide.

Detailed explanation-2: -In 1848, the U.S. portion of the Oregon Country was formally organized as the Oregon Territory. In 1849, Vancouver Island became a British Crown colony-the Colony of Vancouver Island-with the mainland being organized into the Colony of British Columbia in 1858.

Detailed explanation-3: -On August 14, 1848 the United States congress approved the formation of the Oregon Territory. At the time the Oregon Territory included all of the present day states of Oregon, Washington, Idaho, and parts of Montana and Wyoming. Its capital city was located in Oregon City, not far from Portland.

Detailed explanation-4: -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.