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  2. Blood Relations: Menstruation and the Origins of Culture

    en.wikipedia.org/wiki/Blood_Relations:...

    “A man writing about menstruation as empowering not polluting; a Marxist analysis in which sex solidarity and class analysis assume equal explanatory power; a fully social and revolutionary account of our human cultural origins that privileges women; an explicitly political narrative of science in the first person; an interweaving of ...

  3. Consanguinity - Wikipedia

    en.wikipedia.org/wiki/Consanguinity

    Consanguinity (from Latin consanguinitas 'blood relationship') is the characteristic of having a kinship with a relative who is descended from a common ancestor. Many jurisdictions have laws prohibiting people who are related by blood from marrying or having sexual relations with each other.

  4. Systems of Consanguinity and Affinity of the Human Family

    en.wikipedia.org/wiki/Systems_of_Consanguinity...

    [2] [3] In the book Morgan argues that all human societies share a basic set of principles for social organization along kinship lines, based on the principles of consanguinity (kinship by blood) and affinity (kinship by marriage). At the same time, he presented a sophisticated schema of social evolution based upon the relationship terms, the ...

  5. Affinity (Catholic canon law) - Wikipedia

    en.wikipedia.org/wiki/Affinity_(Catholic_canon_law)

    Canon 109 of the Code of Canon Law of the Catholic Church provides that affinity is an impediment to the marriage of a couple, and is a relationship which "arises from a valid marriage, even if not consummated, and exists between a man and the blood relatives of the woman and between the woman and the blood relatives of the man."

  6. Proximity of blood - Wikipedia

    en.wikipedia.org/wiki/Proximity_of_blood

    Proximity of blood, or proximity by degree of kinship, is one of the ways to determine hereditary succession based on genealogy. In effect, the application of this rule is a refusal to recognize the right of representation , a component of primogeniture .

  7. Prohibited degree of kinship - Wikipedia

    en.wikipedia.org/wiki/Prohibited_degree_of_kinship

    In law, a prohibited degree of kinship refers to a degree of consanguinity (blood relatedness), or sometimes affinity (relation by marriage or sexual relationship) between persons that makes sex or marriage between them illegal. An incest taboo between parent and child or two full-blooded siblings is a cultural universal.

  8. Lineal descendant - Wikipedia

    en.wikipedia.org/wiki/Lineal_descendant

    A lineal or direct descendant, in legal usage, is a blood relative in the direct line of descent – the children, grandchildren, great-grandchildren, etc. of a person.In a legal procedure sense, lineal descent refers to the acquisition of estate by inheritance by parent from grandparent and by child from parent, whereas collateral descent refers to the acquisition of estate or real property ...

  9. Exogamy - Wikipedia

    en.wikipedia.org/wiki/Exogamy

    Morgan [7] maintains that exogamy was introduced to prevent marriage between blood relations, especially between brother and sister, which had been common in an earlier state of promiscuity. Frazer [ 8 ] says that exogamy was begun to maintain the survival of family groups, especially when single families became larger political groups.