8 December 1991
Former UMkhonto we Sizwe commander, Chris Hani, was elected as secretary-general of the South African Communist Party (SACP) at its first legal congress in four decades after its unbanning in February 1990. He took over from Joe Slovo, who resigned as result of ill health. Hani served in this position until he was assassinated in 1993 by two right-wingers, Clive Derby-Lewis and Janusz Walus.  
References

Saho,' Thembisile Chris Hani ',[online],Available at www.sahistory.org.za[Accessed: 20 November 2013]