When Genghis Khan, with his Tartar hordes, overran the world Russia was subdued, and Tartar princes took possession of the throne of the ancient czars. But the Russian princes, in the thirteenth century, recovered their ancient power. Alexander Nevsky performed exploits of great brilliancy; gained important victories over Danes, Swedes, Lithuanians, and Teutonic knights; and greatly enlarged the boundaries of his kingdom. In the fourteenth century, Moscow became a powerful city, to which was transferred the seat of government, which before was Novgorod. Under the successor of Ivan Kalita, the manners, laws, and institutions of the Russians became fixed, and the absolute power of the czars was established. Under Ivan III., who ascended the Muscovite throne in 1462, the Tartar rule was exterminated, and the various provinces and principalities, of which Russia was composed, were brought under a central government. The Kremlin, with its mighty towers and imposing minarets, arose in all the grandeur of Eastern art and barbaric strength. The mines of the country were worked, the roads cleared of banditti, and a code of laws established. The veil which concealed Russia from the rest of Europe was rent. An army of three hundred thousand men was enlisted, Siberia was discovered, the printing press introduced, and civilization commenced. But the czar was, nevertheless, a brutal tyrant and an abandoned libertine, who massacred his son, executed his nobles, and destroyed his cities. His successors were disgraced by every crime which degrades humanity; and the whole population remained in rudeness and barbarism, superstition and ignorance. The clergy wielded enormous power; which, however, was rendered subservient to the interests of absolutism. [Sidenote: Accession of Peter the Great.] Such was Russia, when Peter, the son of Alexis Michaelovitz, ascended the throne, in 1682--a boy, ten years of age. He early exhibited great sagacity and talent, but was addicted to gross pleasures. These, strangely, did not enervate him, or prevent him from making considerable attainments. But he was most distinguished for a military spirit, which was treated with contempt by the Regent Sophia, daughter of Alexis by a first marriage. As soon, however, as her eyes were open to his varied studies and his ambitious spirit, she became jealous, and attempted to secure his assassination. In this she failed, and the youthful sovereign reigned supreme in Moscow, at the age of seventeen. No sooner did he assume the reins of empire, than his genius blazed forth with singular brilliancy, and the rapid development of his powers was a subject of universal wonder. Full of courage and energy, he found nothing too arduous for him to undertake; and he soon conceived the vast project of changing the whole system of his government, and reforming the manners of his subjects.