Here, to a remote corner of the world, where, as one of their number said, they had supposed that the only beings in the world were Bushmen and lions, came a series of invaders. It was the outer ripples of civilization starting far away, the indigenous and external civilizations of Africa beating with great impulse among the Ethiopians and the Egyptian mulattoes and Sudanese Negroes and Yorubans, and driving the Bantu race southward. The Bantus crowded more and more upon the primitive Bushmen, and probably a mingling of the Bushmen and the Bantus gave rise to the Hottentots. The Hottentots, or as they called themselves, Khoi Khoin (Men of Men), were physically a stronger race than the Abatwa and gave many evidences of degeneration from a high culture, especially in the "phenomenal perfection" of a language which "is so highly developed, both in its rich phonetic system, as represented by a very delicately graduated series of vowels and diphthongs, and in its varied grammatical structure, that Lepsius sought for its affinities in the Egyptian at the other end of the continent." When South Africa was first discovered there were two distinct types of Hottentot. The more savage Hottentots were simply large, strong Bushmen, using weapons superior to the Bushmen, without domestic cattle or sheep. Other tribes nearer the center of South Africa were handsomer in appearance and raised an Egyptian breed of cattle which they rode. In general the Hottentots were yellow, with close-curled hair, high cheek bones, and somewhat oblique eyes. Their migration commenced about the end of the fourteenth century and was, as is usual in such cases, a scattered, straggling movement. The traditions of the Hottentots point to the lake country of Central Africa as their place of origin, whence they were driven by the Bechuana tribes of the Bantu. They fled westward to the ocean and then turned south and came upon the Bushmen, whom they had only partially subdued when the Dutch arrived as settlers in 1652. The Dutch "Boers" began by purchasing land from the Hottentots and then, as they grew more powerful, they dispossessed the dark men and tried to enslave them. There grew up a large Dutch-Hottentot class. Indeed the filtration of Negro blood noticeable in modern Boers accounts for much curious history. Soon after the advent of the Dutch some of the Hottentots, of whom there were not more than thirty or forty thousand, led by the Korana clans, began slowly to retreat northward, followed by the invading Dutch and fighting the Dutch, each other, and the wretched Bushmen. In the latter part of the eighteenth century the Hottentots had reached the great interior plain and met the on-coming outposts of the Bantu nations.