Hence that dreadful civil contest between these two generals, in which Rome was alternately at the mercy of both, and in which the most horrible butcheries took place that had ever befallen the city--a reign of terror, a burst of savage passion, especially on the part of Marius, who had lately abandoned himself to wine and riotous living. He died B.C. 86, victor in the contest, in his seventh consulate, worn out by labor and dissolute habits, nearly seventy years of age. [Sidenote: Death of Marius.] His opportune death relieved Rome of a tyrannical rule, and opened the way for the splendid achievements of Sulla in the East. A great warrior had arisen in a quarter least expected. In the mountainous region along the north side of the Euxine, the kingdom of Pontus had grown from a principality to a kingdom, and Mithridates, ruling over Cappadocia, Papalagonia, and Phrygia, aspired for the sovereignty of the East. He was an accomplished and enlightened prince, and could speak twenty-five- languages, hardy, adventurous, and bold, like an ancient Persian. By conquests and alliances he had made himself the most powerful sovereign in Asia. [Sidenote: Mithridates.] Availing himself of the disturbance growing out of the Social War, he fomented a rebellion of the provinces of Asia Minor, seized Bithynia, and encouraged Athens to shake off the Roman yoke. Most of the Greek communities joined the Athenian insurrection, and Asia rallied around the man who hoped to cope successfully with Rome herself. [Sidenote: Conquests of Sulla in Greece.] At this juncture, Sulla was sent into Greece with fifty thousand men. Athens fell before his conquering legions, B.C. 88, and the lieutenants of Mithridates retreated before the Romans with one hundred thousand foot and ten thousand horse, and one hundred armed chariots. On the plains of Chaeronea, where Grecian liberties had been overthrown by Philip of Macedon, two hundred and fifty years before, a desperate conflict took place, and the Pontic army was signally defeated. Shortly after, Sulla gained another great victory over the generals of the King of Pontus, and compelled him to accept peace, the terms of which he himself dictated, after exacting heavy contributions from the cities of Greece and Asia Minor. [Sidenote: Death of Sulla.] The civil war between Sulla and the chiefs of the popular faction that had been created by Marius, which ended in his complete ascendency in Italy, stopped for a while the Roman conquests in the East. Sulla, having undone the popular measures of the last half century, and reigned supreme over all factions as dictator, died B.C. 78, after a most successful career, and left his mantle to the most enterprising of his lieutenants, Cnaeus Pompey, who was destined to complete the Mithridatic war. [Sidenote: Character of Sulla.]