24 April 1993
In April 1993 former President of the African National Congress (ANC),Oliver “OR” Tambo died in Johannesburg after a long battle with illness.
References

African National Congress, ‘Oliver Reginald Tambo’, [online], available at www.anc.org.za (Accessed: 13 March 2013)|South African History Online ,‘Oliver Reginald Tambo’ , [online], Available at www.sahistory.org.za [Accessed: 13 March 2012]|South African History Online ‘His Life and legacy ”“ Oliver Tambo’ , [online], Available at: www.sahistory.org.za [Accessed: 13 March 2012]