24 October 1969
The Herstigte Nasionale Party (HNP) (Reconstituted National Party) was established as a right wing splinter group of the South African National Party (NP). The party was led by Albert Hertzog, son of former SA prime minister, General J.B.M. Hertzog, as reaction to a perceived easing of apartheid by the NP controlled government. The name implied that the National Party has deviated from its original course. From the HNP's Programme of Principles it is clear that the party wanted Afrikaans to be the only official language; wanted to curtail immigration; was opposed to allowing Black diplomats in SA; and, was opposed to sport on a non-racist basis.
References

Muller, C.F.J. (ed)(1981). Five Hundred years: a history of South Africa; 3rd rev. ed., Pretoria: Academica, p. 516.