Note DT — Chapter XXIII · SEXUAL MORALITY

Many scholars differentiate between endogamous and exogamous tribes. But Morgan has shown that Endogamy and Exogamy are only two different stages, that in the course of evolution every human tribe has passed through the endogamous and exogamous stages. The Bible knows yet the exogamous stage. “Therefore, shall a man leave his father and mother and shall cleave unto his wife” (Genesis ii, 24). This shows that exogamy lasted into the stage of the pairing family. In the patriarchic family of the Bible, it is the woman who leaves her clan and joins that of her husband. The same is the case among the Homeric Greeks (Ilias vi, 29).