Hottentot is a term historically used of the Khoikhoi, the non-Bantu indigenous nomadic pastoralists of South Africa. Local population dropped after the Khoi were exposed to smallpox by Europeans, who carried it as an endemic disease. The Khoi suffered high mortality as they had no acquired immunity to the new infectious disease. Over the following century, the Khoi were steadily driven off their land, which effectively ended their traditional life. In 1846 George French Angas went to South Africa, where he spent two years in Natal and the Cape, working on a series of drawings and watercolors which were published in 1849 as The Kafirs Illustrated.