13 January 1963
On the 13 January 1963, the South African Non-Racial Olympic Committee (SAN-ROC) was founded by Dennis Brutus. The committee was specifically established to mobilise the international community more effectively and to establish itself as South Africa's official Olympic representative body in place of the 'white' South African Sports Association (SASA). SAN-ROC opposed all racial sport structures and went on to advocate for the expulsion of South Africa from the Olympic Games. The committee succeeded in its efforts in 1964 when South Africa was excluded from the International Olympics Committee (IOC).
References

Kruger, D.W. (ed)(1979).Geskiedenis van Suid-Afrika; verwerk en bygewerk deur D.W. Kruger; 3de bygewerkte uitg., Goodwood, Cape Town: NASOU, (p. 602).