The following lists events that happened during 1910 in South Africa. Incumbents Cape Colony Governor of the Cape of Good Hope: Maj Gen Henry Scobell (acting) (until 30 May). Prime Minister of the Cape of Good Hope: John X. Merriman (until 30 May). Natal Governor of the Colony of Natal: The Lord Methuen (until 30 May). Prime Minister of the Colony of Natal: Frederick Robert Moor (until 28 April). Orange River Colony Governor of the Orange River Colony: Sir Hamilton Goold-Adams (until 30 May). Prime Minister of the Orange River Colony: Abraham Fischer (until 30 May). Transvaal Governor of the Transvaal Colony and High Commissioner for Southern Africa: The Earl of Selborne (until 30 May). Prime Minister of the Transvaal Colony: Louis Botha (until 30 May). Union of South Africa Monarch: King George V (starting 31 May). Governor-General of the Union of South Africa and High Commissioner for Southern Africa: The Viscount Gladstone (from 31 May). Prime Minister of the Union of South Africa: Louis Botha (from 31 May). Chief Justice: John de Villiers, 1st Baron de Villiers. Events May 31 – The Union of South Africa is established from the former British colonies of the Cape of Good Hope, Natal, Transvaal and Orange River Colony. 31 – Herbert John Gladstone becomes the first Governor-General of the Union of South Africa. 31 – Louis Botha becomes the first Prime Minister of the Union of South Africa. September 17 – King Geoge V granted an official coat of arms to the Union. November 4 – 1st South African Parliament opened. December 28 – Official flag badges approved for the Union. Unknown date The Girl Guides movement is established. The white population in South Africa is 21.5% of the total. Witwatersrand gold mine owners come under pressure to improve sanitary conditions since a third of the black miners are dying of pneumonia. The Pretoria and Johannesburg branches of the Transvaal University College (TUC) split into independent institutions. The branches will later become the University of Pretoria (Tuks) and the University of the Witwatersrand (Wits) respectively. Births 24 March – Adolph Malan, World War II fighter pilot. (d. 1963) 9 July – Govan Mbeki, anti-apartheid activist and politician. (d. 2001) 30 September – Monty Naicker, medical doctor and politician. (d. 1978) 26 November – Cyril Cusack, South African–born actor (d. 1993) Deaths Railways Railway lines opened 21 March – Cape Eastern – Riverside