However as soon as agriculture increased greatly in importance, especially when the raising of cattle, commerce, and industry grew up beside it, the relation between the sexes became considerably modified. The man gave up hunting, always a less important resource at this stage, and applied himself more and more to agriculture and other branches, and the woman only seconded him in these occupations. In consequence of the continually increasing productivity of labor, the man could produce more than he needed for consumption. The possession of slaves then became advantageous, slavery took on greater and greater proportions, and in this way the woman’s part in the economic life became less important. Thus the man becomes anew the principal factor and his authority resumes the force it had in the earlier periods. It is no longer the man who lives with the woman and her family but she lives with him. We have seen above that among the lower agriculturists it is the clan, and especially the maternal clan, that holds the first place. Through the economic development the maternal clan is made to give place to the paternal clan. In the clan there was equality, since the soil, the most important means of production, and the dwelling were possessed in common; but the disappearance of this equality followed the development of commerce and industry, for the products of these were, from the first, private property. This inequality was increased still more because private property in land began to grow up side by side with property in common. In the second place, the booty in war was not the same for all warriors, and furthermore war brought about the existence of a class of persons (slaves) whose interests were opposed to those of the conquerors. This development of private property leads necessarily to a gradual change from the maternal clan to the paternal. For in the first case a father had to leave his property to the members of his clan (we have seen that it was the man who became the possessor of private wealth); and since his children belonged always to another clan than his own, the clan of their mother, the children did not inherit from their father. Hence the change to the paternal clan. [306] But this was not all. Through the great modifications in the mode of production of which I have already spoken, the importance of the clan diminished more and more, and at length disappeared entirely. As long as there was equality among the members of the clan, as long as the social relationships were little complicated, the clan and the organizations that sprang from it (mere combinations of clans) sufficed for the purposes of social organization. But such an organization, being purely democratic in its nature, was no longer adapted to a society in which there were rich and poor, freemen and slaves, in which, therefore, there was a large group of persons oppressed and a small group of oppressors.