18 March 1965
On this date the nuclear reactor Safari, located in Pelindaba, near Pretoria, went critical and South Africa entered the nuclear age. The US firm Allis Chalmers Corporation had supplied South Africa with the 20MW Safari-1 nuclear reactor and highly enriched uranium (HEU) to fuel it. South Africa's nuclear program began after World War II when uranium deposits were discovered in the country. The project was not initially started with military ambitions. South Africa is the only country in the world to give up its nuclear weapons voluntarily. Sources: (author unknown), (2003). 'Milestones', The Star, 18 March, p. 2. http://www.nti.org/e_research/profiles/SAfrica/Nuclear/2149_2150.html http://web.mit.edu/ssp/spring01/albright.htm