On the rebellion of Nabopolassar, in 625 B.C., Babylon recovered not only its ancient independence, but more than its ancient prestige; yet the empire of which it was the capital lasted only about the same length of time as Media and Lydia,--the most powerful monarchies existing when Cyrus was born. Babylon, however, during its brief dominion, after having been subject to Assyria for seven hundred years, reappeared in unparalleled splendor, and was probably the most magnificent capital the ancient world ever saw until Rome arose. Even after its occupancy by the Persian monarchs for two hundred years, it called out the admiration of Herodotus and Alexander alike. Its arts, its sciences, its manufactures, to say nothing of its palaces and temples, were the admiration of travellers. When the proud conqueror of Palestine beheld the magnificence he had created, little did he dream that "this great Babylon which he had built" would become such a desolation that its very site would be uncertain,--a habitation for dragons, a dreary waste for owls and goats and wild beasts to occupy. We should naturally suppose that Cyrus, with the kings of Asia prostrate before his satraps, would have been contented to enjoy the fruits of his labors; but there is no limit to man's ambition. Like Alexander, he sought for new worlds to conquer, and perished, as some historians maintain, in an unsuccessful war with some unknown barbarians on the northeastern boundaries of his empire,--even as Caesar meditated a war with the Parthians, where he might have perished, as Crassus did. Unbounded as is human ambition, there is a limit to human aggrandizement. Great conquerors are raised up by Providence to accomplish certain results for civilization, and when these are attained, when their mission is ended, they often pass away ingloriously,--assassinated or defeated or destroyed by self-indulgence, as the case may be. It seems to have been the mission of Cyrus to destroy the ascendency of the Semitic and Hamitic despotisms in western Asia, that a new empire might be erected by nobler races, who should establish a reign of law. For the first time in Asia there was, on the accession of Cyrus to unlimited power, a recognition of justice, and the adoration of one supreme deity ruling in goodness and truth.