Transition from matrilineal to patrilineal descent
The Second SexThe transition from matrilineal to patrilineal descent marks the point at which descent and inheritance were organized around the father’s authority rather than the mother’s lineage. In the historical argument developed here, it was not a single revolution but a far-reaching reorganization of rights: the father became the recognized holder and transmitter of them, while the mother was assigned a secondary role. Its importance lies both in this change to kinship and in the larger patriarchal order it helped authorize.
From kinship to paternal authority
The shift is described as one of the most consequential ideological changes of early society. Under agnatic descent, the father was recognized as the parent who possessed rights and passed them on; the mother was lowered to the status of nurse or servant. The text stresses that this hierarchy was not established by a new scientific discovery about conception. Rather, technical understanding that the father contributed to procreation could have supported recognition of the parents’ equal roles, but it was turned into a claim of paternal supremacy. The assertion that the father alone owned his posterity is presented as an act of faith serving a will to power.
This transformation also altered the meaning of children and inheritance. As agriculture became productive labor and land became property, men claimed both crops and children as their own. Heirs extended a father’s life beyond death by inheriting his possessions and sustaining the honors associated with his memory. Kinship thus joined economic succession to spiritual continuity: control over descent secured the transmission of property and the father’s authority across generations.
The social conditions of the transition
The account places the change within the development of property and productive work, rather than explaining women’s subordination through physical strength alone. Earlier, women’s fertility could command reverence and give them a precarious power in relation to men. But when men acquired land and organized family labor for their fields, they sought to control the workers, their wives, and their children. Women’s exclusion from the new forms of work and from shared projects helped men treat them as unequal; their reduced economic role then reinforced their subordination.
The argument therefore resists a simple story in which a sudden conquest replaced a prior, egalitarian matriarchy. The text calls the supposed golden age of women a myth: even where women appeared as Earth, Mother, or Goddess, they were not necessarily treated as men’s peers or as autonomous political subjects. Across different systems of descent, women remained under male guardianship, with authority passing from a father or brother to a husband. Matrilineal affiliation did not, by itself, mean that women held the law or controlled the relationships between groups; women could serve as the means through which ties between men were established.
Myths of victory and historical change
Myths gave dramatic form to the establishment of paternal right. In the account of the transition, Apollo’s speech in Aeschylus’s Eumenides declares the mother a nurse of the child rather than its parent, making the new hierarchy appear as a truth sanctioned by divine authority. The story of Bel-Marduk’s battle with Tiamat likewise depicts a male power killing the maternal figure and making an ordered world from her body. In the same dramatic tradition, Orestes kills Clytemnestra and is acquitted; the divine tribunal recognizes him as Agamemnon’s son before Clytemnestra’s. These stories cast the new order as a bloody victory of male authority and cosmic order over maternal right.
The text sharply separates that legendary account from its historical explanation. The transition to paternal rights, it argues, took place through gradual changes: masculine conquest was a reconquest, and law was brought into alignment with a reality already shaped by men’s growing control. The legends nevertheless matter because they turn the Other into a threat and represent male sovereignty as the defeat of disorder. Once patriarchal societies recorded their mythology and law, men wrote the codes and assigned women subordinate positions, often describing them as dangerous, impure, or naturally inferior.
Historical meaning and consequences
The transition belongs to a wider history in which institutions and explanations of women’s status reflect men’s projects and interests. The account connects paternal descent to private property, family authority, religious doctrine, and laws that treated women as dependents. It also cautions against mistaking descriptions of women’s supposed nature for neutral accounts: such claims could serve to justify a hierarchy that had been produced through social arrangements.
Its consequences are not confined to ancient inheritance. The same analysis identifies domestic labor as repetitive work that confines women to the maintenance of life rather than opening a future through projects of their own. In its account of contemporary rural women, a woman might share her husband’s responsibilities and property while still bearing the work of fields, animals, meals, household management, pregnancy, and childcare, with little leisure. The historical argument thus links the old assignment of women to reproduction and service with later forms of unequal labor and restricted independence.
Narrative and thematic significance
The transition is a central example of the book’s method: it treats a seemingly natural social order as a historical formation, and tests claims about women against the institutions and interests that support them. Its account does not describe a clean passage from a matriarchal golden age to patriarchy. Instead, it distinguishes women’s symbolic elevation as mothers or goddesses from their political standing, and distinguishes a gradual material transformation from myths that depict a decisive battle.
That distinction supports the broader claim that women’s condition is made within a world where men have occupied the position of sovereign subject. Women, though autonomous beings, have been compelled to assume the role of the Other and confined to immanence. Patrilineal descent is therefore significant not merely as a rule for tracing ancestry: it is part of the historical process by which male authority came to define kinship, property, and the possibilities available to women.

