The first effect of the established supremacy of men became now visible in the reappearance of the intermediate form of the patriarchal family. Its most significant feature is not polygamy, of which more anon, but "the organization of a certain number of free and unfree persons into one family under the paternal authority of the head of the family. In the Semitic form this head of the family lives in polygamy, the unfree members have wife and children, and the purpose of the whole organization is the tending of herds in a limited territory." The essential points are the assimilation of the unfree element and the paternal authority. Hence the ideal type of this form of the family is the Roman family. The word familia did not originally signify the composite ideal of sentimentality and domestic strife in the present day philistine mind. Among the Romans it did not even apply in the beginning to the leading couple and its children, but to the slaves alone. Famulus means domestic slave, and familia is the aggregate number of slaves belonging to one man. At the time of Gajus, the familia, id est patrimonium (i. e., paternal legacy), was still bequeathed by testament. The expression was invented by the Romans in order to designate a new social organism, the head of which had a wife, children and a number of slaves under his paternal authority and according to Roman law the right of life and death over all of them. "The word is, therefore, not older than the ironclad family system of the Latin tribes, which arose after the introduction of agriculture and of lawful slavery, and after the separation of the Aryan Itali from the Greeks." Marx adds: "The modern family contains the germ not only of slavery (servitus), but also of serfdom, because it has from the start a relation to agricultural service. It comprises in miniature all those contrasts that later on develop more broadly in society and the state." Such a form of the family shows the transition from the pairing family to monogamy. In order to secure the faithfulness of the wife, and hence the reliability of paternal lineage, the women are delivered absolutely into the power of the men; in killing his wife, the husband simply exercises his right. With the patriarchal family we enter the domain of written history, a field in which comparative law can render considerable assistance. And here it has brought about considerable progress indeed. We owe to Maxim Kovalevsky (Tableau etc. de la famille et de la propriete, Stockholm, 1890, p. 60-100) the proof, that the patriarchal household community, found to this day among Serbians and Bulgarians under the names of Zadruga (friendly bond) and Bratstvo (fraternity), and in a modified form among oriental nations, formed the stage of transition between the maternal family derived from group marriage and the monogamous family of the modern world. This seems at least established for the historic nations of the old world, for Aryans and Semites.