In looking upon a modern map of the empire of China, it will be seen to cover a vast area in Asia, including not only China proper but the wide plains of Mongolia and the rock-bound region of Thibet. Yet no such map could properly have been drawn two hundred years ago. Thibet, while a tributary realm, was not then a portion of China, while the Mongolian herdsmen were still the independent warriors and the persistent enemies of China that they had been from time immemorial. It is to the Manchu emperors that the subjection of these countries and their incorporation in the Chinese empire are due. To-day the far-reaching territory of the steppes, the native home of those terrible horsemen who for ages made Europe and Asia tremble, is divided between the two empires of China and Russia, and its restless hordes are held in check by firm and powerful hands, their period of conquest at an end. It was to two of the Manchu monarchs, Kanghi and Keen Lung,--whose combined reigns covered more than a hundred and twenty years,--that the subjection of these long turbulent regions was due, enabling China to enter the nineteenth century with the broad territorial expanse now marked on our maps. The story of how the subjection of the nomads came about is a long one, much too long for the space at our command, yet a brief synopsis of its leading events will prove of interest and importance to all who desire to follow the successive steps of Chinese history. Kanghi, the second Manchu emperor, and one of the greatest of the rulers of China, having completed the conquest of the Chinese themselves, turned his attention to the nomadic hordes who threatened the tranquillity of his reign. He was one of their own race, a man of Tartar blood, and many of the desert tribes were ready to acknowledge his supremacy, among them the Khalkas, who prided themselves on direct descent from Ghengis and his warriors, but had lost all desire to rule the earth and were content to hold their own among the surrounding tribes. They dwelt on those streams which had watered the birthplace of the Mongol tribe, and their adhesion to the Manchu cause kept all the Mongols quiet. But west of these dwelt another nomad race, the Calmucks, divided into four hordes, of which the Eleuths were by no means content to yield to Chinese or Manchu control. Their independence of spirit might have been of little importance but that it was sustained by an able and ambitious leader, who not only denied Kanghi's supremacy but disputed with him the empire of the steppes.