1. the leading character of a drama or other literary work. 2. a chief proponent or leader of a movement, cause, etc. 3. (in ancient Greek drama) the actor who played the main role and other roles as well. 4. Physiol. agonist (def.
Ian Khama. Lieutenant General Dr Seretse Khama Ian Khama (or Ian a SerÃªtsÃª; born 27 February 1953) is a Botswana politician who has been the President of Botswana since 2008.
Nelson Rolihlahla Mandela was the first black South African  President and fought to stop racism.    He was imprisoned in 1962, convicted of sabotage and conspiracy toâ¦  overthrow the government. He served 27 years in prison, released in  1990 and went on to become president of South Africa.