CHENSHIA MINING
While the Chinese fleets rounding the Cape of Good Hope goes back to the 1420's when Admiral Zheng He's Armada mapped the African continent, it was only with the start of the South African gold rush that controlled migration from China occurred.
The complex and often troubled history of Africa means that, although it was people such as the Chinese migrants who built the nation's infrastructure, they were seldom mentioned and or rewarded for their efforts.