exploitation of the conquered provinces. The emperors had not abolished, but organized this exploitation. The more the empire fell to pieces, the higher rose the taxes and tithes, and the more shamelessly did the officials rob and blackmail. Commerce and industry had never been a strong point of the domineering Romans. Only in usury they had excelled all other nations before and after them. What commerce had managed to exist, had been ruined by official extortion. Only in the East, in the Grecian part of the empire, some commerce still vegetated, but this is outside of the scope of our study. Universal reduction to poverty, decrease of traffic, of handicrafts, of art, of population, decay of the towns, return of agriculture to a lower stage—that had been the final result of Roman world supremacy.
But now agriculture, the most prominent branch of production in the whole Old World, was again supreme, and more than ever. In Italy, the immense estates (latifundiae) that comprised nearly the whole country since the end of the republic, had been utilized in two ways: either as pastures on which the population had been replaced by sheep and oxen, the care of which required only a few slaves; or as country seats, on which masses of slaves carried