in Africa. The Kalahari Desert (Dorsland in Afrikaans) is a large semi-arid savanna in South Africa covers 900,000 km Â² sand (350,000 square miles) that much of Botswana and parts of Namibia and South Africa.
The Oregon Territory, 1846. Along with territorial disputes with Spain and Mexico over the Southwest, the fate of the Oregon Territory was one of the major diplomatic issues of the first half of the 19th century.
The 1846 Oregon Treaty established the border between British North America and the United States along the 49th parallel until the Strait of Georgia, where the marine boundary curved south to exclude Vancouver Island and the Gulf Islands from the United States.he border established by the Oregon Treaty and finalized by the arbitration in 1872 remains the boundary between the United States and Canada in the Pacific Northwest.