Premise: Nelson Rolihlahla Mandela ( [ mænˈdɛlə ] 18 July 1918 -- 5 December 2013 ) was a South African anti-apartheid revolutionary , politician , and philanthropist , who served as President of South Africa from 1994 to 1999 . A Xhosa , Mandela was born in Mvezo to the Thembu royal family . The Xhosa people ( [ langˈkɔːsə ] or [ ˈkoʊsə ] [ kǁʰɔ́ːsa ] ) are a Bantu ethnic group of Southern Africa mainly found in the Eastern Cape , South Africa , and in the last two centuries throughout the southern and central-southern parts of the country .
Hypothesis: Nelson Mandela is not South African.
Label: CONTRADICTION