8 February 1964
Sir de Villiers Graaff, leader of the United Party, the official opposition, agreed with the apartheid government that the composition of the proposed United Nations Committee to Study Apartheid (UNCSA) was such as to preclude any possibility of an objective or impartial inquiry, and that the group should not be received in South Africa.
References

Kalley, J.A.; Schoeman, E. & Andor, L.E. (eds)(1999). Southern African Political History: a chronology of key political events from independence to mid-1997, Westport: Greenwood.)