As in most other states, corruption of manners was the consequence of prosperity and the cause of decay. Towards the close of the third century of Rome, Pythagoras had in some measure succeeded in reforming the morals of Crotona, while the rival state of Sybaris, like the Moorish Grenada, hastened to destruction, amid carousals and civil dissensions; and though once capable, as is said, (but probably with some exaggeration,) of bringing three hundred thousand soldiers into the field(102), it sunk, after a short struggle, under the power of Crotona. The other independent states were successively agitated by the violence of popular revolution, and crushed by the severity of despotism. As in the mother country, they had constant dissensions among themselves. This rivalship induced them to call in the assistance of the Sicilians—a measure which prepared the way for their subjection to the vigorous but detestable sway of the elder Dionysius, and of Agathocles. Tarentum, founded about the same time with Sybaris and Crotona, was the most powerful city of the Grecian colonies toward the conclusion of their political existence, and the last formidable rival to the Romans in Italy. Like the neighbouring states, it was chiefly ruined by the succour of foreign allies. Unsuccessfully defended by Alexander Molossus, oppressed by the Syracusan tyrants, and despoiled by Cleomenes of Sparta, neither the genius of Pyrrhus, nor the power of Carthage, could preserve it from the necessity of final submission to the Romans.