All the tribes in Southern Africa, including the Zulu tribe, with the exception of the San / Bushmen, originate from the central African regions, and has migrated over the past few hundred years south.
There are various reasons for this movement of the tribes, ranging from the natural expansion of tribal people looking for grazing for their live-stock, and the conflicts between tribes.
The Zulu myth on their creation is as follows:
The Ancient One, known as Unkulunkulu, is the Zulu creator.
He came from the reeds (anga, means source) and from them he brought forth the people and the cattle.
He created everything that is: mountains, streams, all creatures wild and domestic.
He taught the Zulu how to hunt, how to make fire, and how to grow food.
He is considered to be the First Man, and is in everything, that he created.