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The various indigenous hunter-gatherer peoples of southern Africa, whose territory spans Botswana, Namibia, Angola, Zambia, Zimbabwe and South Africa, are collectively referred to as San people, Bushmen, or Basarwa, all considered pejorative to some degree. There is a significant linguistic difference between the northern people living between the Okavango River in Botswana and Etosha National Park in northwestern Namibia, extending up into southern Angola; the central people of most of Namibia and Botswana, extending into Zambia and Zimbabwe; and the southern people in the central Kala...