San people
The San or Saan peoples, also known as the Bushmen (also Sākhoen, Sonqua, and in Afrikaans: Boesmans, after Dutch Boschjesmens; and Saake in the Nǁng language), are members of various Khoesān-speaking indigenous hunter-gatherer groups that are the first nations of Southern Africa, and whose territories span Botswana, Namibia, Angola, Zambia, Zimbabwe, Lesotho and South Africa. There is a significant linguistic difference between the northern peoples living between the Okavango River in Botswana and Etosha National Park in northwestern Namibia, extending up into southern Angola; the central peoples of most of Namibia and Botswana, extending into Zambia and Zimbabwe; and the southern people in the central Kalahari towards the Molopo River, who are the last remnant of the previously extensive indigenous Sān of South Africa.The ancestors of the hunter-gatherer Sān are thought to have been the first inhabitants of what is now Botswana and South Africa. The historical presence of the San in Botswana is particularly evident in northern Botswana's Tsodilo Hills region. In this area, stone tools and rock art paintings date back over 70,000 years and are by far the oldest known art.