While the Kins were absorbed in their contest with the Southern Chinese, they were oblivious of the growth of a new and formidable power on their own borders. The strength of the Mongols had acquired serious dimensions before the Kins realized that they would have to fight, not only for supremacy, but for their very existence. Before describing the long wars that resulted in the subjection of China by this northern race, we must consider the origin and the growth of the power of the Mongols, who were certainly the most remarkable race of conquerors Asia, or perhaps the whole world, ever produced. The home of the Mongols, whose name signifies "brave men," was in the strip of territory between the Onon and Kerulon rivers, which are both tributaries or upper courses of the Amour. They first appeared as a separate clan or tribe in the ninth century, when they attracted special attention for their physical strength and courage during one of China's many wars with the children of the desert, and it was on that occasion they gained the appellation under which they became famous. The earlier history of the Mongol tribe is obscure, and baffles investigation, but there seems no reason to doubt their affinity to the Hiongnou, with whose royal house Genghis himself claimed blood relationship. If this claim be admitted, Genghis and Attila, who were the two specially typical Scourges of God, must be considered members of the same race, and the probability is certainly strengthened by the close resemblance in their methods of carrying on war. Budantsar is the first chief of the House of Genghis whose person and achievements are more than mythical. He selected as the abode of his race the territory between the Onon and the Kerulon, a region fertile in itself, and well protected by those rivers against attack. It was also so well placed as to be beyond the extreme limit of any triumphant progress of the armies of the Chinese emperor. If Budantsar had accomplished nothing more than this, he would still have done much to justify his memory being preserved among a free and independent people. But he seems to have incited his followers to pursue an active and temperate life, to remain warriors rather than to become rich and lazy citizens. He wrapped up this counsel in the exhortation, "What is the use of embarrassing ourselves with wealth? Is not the fate of man decreed by heaven?" He sowed the seed of future Mongol greatness, and the headship of his clan remained vested in his family.