19 May is remembered as the day in 1930 that white women got the vote in South Africa:
In South Africa, the Women’s Enfranchisement Association of the Union (WEAC) did much to change the perception of women in the period after the South African War. However, giving women the vote was overshadowed by a number of issues. One was their stance on equality for black people. This delayed the granting of the vote to White women in South Africa up until 1930 when the Hertzog election platform promised to raise the issue of granting the vote to white women in parliament, on condition that they supported his re-election.
After his re-election, Hertzog made good on his word and on 19 May 1930, white women got the vote.