1931, 3 December
The Statute of Westminster is passed in Britain which gives British dominions legislative independence.
1955, 3 December
Britain and Egypt agree on independence for Sudan.
1963, 3 December
Nelson Mandela's treason trial begins in South Africa.
1967, 3 December
First heart transplant performed by Dr Christiaan Neethling Barnard. (Next -> 21 December 1967: Louis Washkansky dies.)

