What caused South Africa to grow so rapidly in the 1900’s?

On 13 March 1900 Bloemfontein was occupied by the British, followed by Johannesburg and Pretoria on 1 September. The Boers continued a guerilla war, which was countered by the British by devastating the boers' farms and placing their women and children in white- and black concentration camps were some 28 000 died.

the british army and british colonist were by iroquois indians.

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.