This document summarizes the development of South Africa's political system from 1989 to 2012. It describes the release of Nelson Mandela in 1990 after 27 years in prison, followed by 4 years of negotiations for an interim constitution. The new permanent constitution was signed in 1996 and took effect in 1997, establishing a constitutional democracy with a three-tier system of government. The first democratic elections were held in 1994 and were won by the African National Congress led by Mandela, marking the end of apartheid.