But though the civilization of China is wholly Mongolian (as we have defined Mongolian), it does not follow that the northern roots are the only ones from which it grew. If it grew first in the Tarim valley, then unlike all other civilizations (including the Mexican and Peruvian) it did not grow out of the heliolithic culture. We Europeans know very little as yet of the ethnology and pre-history of southern China. There the Chinese mingle with such kindred peoples as the Siamese and Burmese, and seem to bridge over towards the darker Dravidian peoples and towards the Malays. It is quite clear from the Chinese records that there were southern as well as northern beginnings of a civilization, and that the Chinese civilization that comes into history 2000 years B.C. is the result of a long process of conflicts, minglings, and interchanges between a southern and a northern culture of which the southern may have been the earlier. The southern Chinese perhaps played the rôle towards the northern Chinese that the Hamites or Sumerians played to the Aryan and Semitic peoples in the west, or that the settled Dravidians played towards the Aryans in India. They may have been the first agriculturists and the first temple builders. But so little is known as yet of this attractive chapter in pre-history, that we cannot dwell upon it further here. The chief foreigners mentioned in the early annals of China were a Ural-Altaic people on the north-east frontier, the Huns, against whom certain of the earlier emperors made war. Chinese history is still very imperfectly known to European students, and our accounts of the early records are particularly unsatisfactory. About 2700 to 2400 B.C. reigned five emperors, who seem to have been almost incredibly exemplary beings. There follows upon these first five emperors a series of dynasties, of which the accounts become more and more exact and convincing as they become more recent. China has to tell a long history of border warfare and of graver struggles between the settled and nomad peoples. To begin with, China, like Sumer and like Egypt, was a land of city states. The government was at first a government of numerous kings; they became loosely feudal under an emperor, as the Egyptians did; and then later, as with the Egyptians, came a centralizing empire. Shang (1750 to 1125 B.C.) and Chow (1125 to 250 B.C.) are named as being the two great dynasties of the feudal period. Bronze vessels of these earlier dynasties, beautiful, splendid, and with a distinctive style of their own, still exist, and there can be no doubt of the existence of a high state of culture even before the days of Shang.