The keystone of the fabric of Roman sovereignty over the coasts of the Mediterranean was, however, still lacking. Carthage had once more risen to prosperity. Her commerce and wealth--insignificant by themselves--were only likely to become formidable if Rome were constrained, as in the year 150, to face hostile powers in both Spain and the East. Consequently Rome could not rest until she had swept the rival of her greatness from the face of the earth. After frequent quarrels with Masinissa, and after threats and humiliating demands of every sort, the Carthaginians in despair took up arms for their last fight for liberty. Scipio Æmilianus took Carthage in the year 146 B.C. Well might the victor shed tears at the sight of the city delivered over to the flames; reflecting that a like fate would some day befall his own birthplace. For with the fall of her last foe abroad the dominion of Rome began to crumble from internal decay. Sanguinary revolts of slaves (140-133 B.C.), the corruption of the aristocracy, the decay of the classes of free citizens and free peasants, were enemies which inflicted far worse wounds on the Roman Empire than the sword of its foes abroad. Her sturdy peasantry and the moral worth of her citizens were the forces that had made Rome great. Her expansion by conquest had enabled her to ameliorate the condition of the poorer citizens by founding colonies and partitioning public lands, and thus to augment the numbers of a capable agricultural population. In proportion as the system of plantations worked by slave labour took the place of this healthy development the masses of the urban proletariat increased, while their fitness for military service diminished, and the ancient Roman _virtus_ speedily became a thing of the past. We know too well how little such civilising influences as the Etruscans, and after them the Greeks of south Italy, brought to bear upon Roman life, could offer in the way of compensation. Many forms and usages of religious worship, many games and theatrical performances imitated from Greek models, found acceptance at Rome. Under the influence of Greek teachers a school of poetry and an elaborate style of Latin prose developed. With admirable readiness the self-contained Romans familiarised themselves, not only with the Greek language, but with many aspects of Greek philosophy and rhetoric. But the dark side of the picture almost counterbalanced the brightness of this advance in culture. With the Greek philosophers came Greek soothsayers and charlatans, with the Greek drama the airs and abominations of the Greek world; with the Greek tutor the cook, the barber, and the courtesan came to Rome from the East and freely exercised their corrupting influence. The proceedings against the Bacchanalia in 186 B.C., in which thousands of guilty members of the secret society of Bacchus were condemned to death, show how rapid was the decline of the severity of Roman morals.