Most people take this to have taken place in 1652 when Jan van Riebeeck landed at what is now Cape Town in his three tiny ships, the Drommedaris, Reijger, and Goede Hoop with a party of hardy souls who were tasked with building a fort and planting a garden to serve as a way-station for the VOC trade route between the Netherlands and the East Indies.
Upon his arrival, Jan van Riebeeck came accross the Khoikhoi people or Khoi, who were originally part of a pastoral culture and language group found across Southern Africa. The Khoi had originated in the northern area of modern day Botswana and the ethnic group steadily migrated south, reaching the Cape approximately 2,000 years ago, where they found the regions original inhabitants, the San or Bushmen who were hunter gatherers. Archaeological evidence suggests that they have lived in southern Africa, (and probably other areas of Africa) for at least 22,000 years but probably much longer. Genetic evidence suggests they are one of the oldest, if not the oldest, peoples in the world.
Migratory Khoi bands living around what is today Cape Town intermarried with San. However the two groups remained culturally distinct as the Khoikhoi continued to graze livestock and the San subsisted as hunter-gatherers. The Khoi initially came into contact with European explorers and merchants in approximately AD 1500. The ongoing encounters were often violent, although the British made some attempt to develop more amiable relationships. Local population dropped when the Khoi were exposed to smallpox by Europeans. Active warfare between the groups flared when the Dutch East India Company, the VOC, enclosed traditional grazing land for farms. Over the following century the Khoi were steadily driven off their land, which effectively ended traditional Khoikhoi life.
When the early Portuguese sailors rounded the Cape of Good Hope in the 1400s very few Bantu speakers were found there, with the predominant indigenous population around the Cape made up of Khoisan peoples. Following Jan van Riebeeks, settlement at the Cape in 1652 European settlers began to occupy Southern Africa in increasing numbers. Around 1770 European Settlers migrating north encountered land permanently occupied by Bantu speaking peoples (in particular around the Fish River) and frictions arose between the two groups. This began a pattern in which the new (white) settlers used superior force to subdue and/or displace the Bantu speaking peoples they encountered, much as had been done with the aboriginal Khoisan peoples the white settlers had previously encountered at the Cape.
From the late 1700s and early 1800s there were two major areas of frictional contact between the white settlers and the Bantu speaking peoples in Southern Africa. Firstly, as the Settlers moved north inland from the Cape they encountered the Xhosa, the Basotho, and the Tswana. Secondly attempts at large coastal settlements were made by the British in Xhosa territory and in Zululand.
The original European white settlers who came out to Southern Africa originated mainly from the Netherlands and Germany, while French refugees began to arrive in the Cape after leaving their country following the revocation of the Edict of Nantes in October 1685. Individual French Huguenots settled at the Cape from as early as 1671 however and an organised, large scale settlement of Huguenots to the Cape took place during 1688 and 1689.
To ease Cape labour shortages slaves were brought from Indonesia, Madagascar and India. Furthermore, troublesome leaders, often of royal descent, were banished from Dutch colonies to South Africa.
In 1795 the British siezed the Cape from the Dutch and returned it to them between 1803 and 1806, following which the British annexed it, after the VOC declared bankruptcy.
Further Settler parties came out to Southern Africa including the 1820 Settlers from Great Britain, the Byrne Settlers between 1849 and 1851 and the German Military Settlers to the Eastern Cape in 1857/57 amongst others.
It is of course fair to say that there was some degree of intermarriage between the various groups living in Southern Africa both before and after the arrival of settlers of European origin and I will write more about this in later posts.
One can see however that the origins of the Rainbow nation is not a recent development.