The recrudescence of slavery came when the expanding energies of European society, in the seventeenth and eighteenth centuries, dashed against the weak barbarians of Africa and America. The old story was retold,--the stronger man, half-savage still under the veneer of civilization and Christianity, trampled the weaker man under foot. In Europe there was little need or room for slaves--the labor supply was sufficient, but on the new continent, in the words of Weeden (_Economic and Social History of New England_): "The seventeenth century organized the new western countries, and created an immense opportunity for labor. The eighteenth coolly and deliberately set Europe at the task of depopulating whole districts of western Africa, and of transporting the captives, by a necessarily brutal, vicious and horrible traffic, to the new civilization of America." The European was impartial between African and Indian; he was equally ready to enslave either; but the Indian was not made for captivity,--he rebelled or ran away or died; the more docile negro was the chief victim. The stream of slavery moved mainly according to economic conditions. Soil and climate in the Northern States made the labor of the indolent and unthrifty slave unprofitable, but in the warm and fertile South, developing plantations of tobacco, rice, and indigo, the negro toiler supplied the needed element for great profits. The church's part in the business was mainly to find excuse; through slavery the heathen were being made Christians. But when they had become Christians the church forgot to bid that they be made brothers and freemen. Some real mitigation of their lot no doubt there was, through teaching of religion and from other conditions. Professor Du Bois says that slavery brought the African three advantages: it taught him to labor, gave him the English language and--after a sort--the Christian religion. But it ruined such family life as had existed under a kind of regulated polygamy. Again we must decline to measure the good and the evil of the system. Probably the negro was in better condition in America than he had been in Africa, as he certainly was in far worse condition than he was entitled to be--and was in future to be.