USA HISTORY

Detailed explanation-1: -The Oregon Treaty set the border between the U.S. and British North America at the 49th parallel with the exception of Vancouver Island, which was retained in its entirety by the British. Vancouver Island, with all coastal islands, was constituted as the Colony of Vancouver Island in 1849.

Detailed explanation-2: -On June 15, 1846, Britain and the United States sign the Treaty of Oregon establishing the 49th parallel as the primary international boundary in the Pacific Northwest.

Detailed explanation-3: -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. The treaty established the 49th parallel as the border between the two countries.

Detailed explanation-4: -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-5: -Two years earlier, the United States and Great Britain had signed the Oregon Border Treaty which guaranteed the US claims to the lands incorporated in the Oregon Territory.