Every school in Part 5 so far was built by men, and every one of them treated the position of half the population as a background condition rather than a subject.

Feminist theory is not a topic added to sociology. It is a reconstruction of the discipline's foundations, and its first move is a question the discipline could not answer: why did nobody notice?

The founding move: sex and gender

The argument's ancestry runs from Mary Wollstonecraft's Vindication of the Rights of Woman (1792), through Charlotte Perkins Gilman's Women and Economics (1898) (4.6.1), to Simone de Beauvoir's The Second Sex (1949), whose formulation is the tradition's founding sentence:

"One is not born, but rather becomes, a woman."

Beauvoir's larger argument: man is posited as the norm, the universal, the Subject; woman is defined always in relation to him, as the Other. "He is the Subject, he is the Absolute — she is the Other." Which is why "human being" and "man" are the same word in so many languages, and why a study of men can be titled a study of people.

Patriarchy

Social reproduction: the missing half of the economy

The most important sociological contribution, and the direct answer to the kitchen table.

Standpoint theory

The epistemological contribution, and the one that connects to Part 4's largest argument.

Go deeper

The waves, and why the metaphor is imperfect

The standard periodisation, offered with its own caveat.

First wave (roughly 1840s–1920s) — legal and political rights: suffrage, property, education, divorce. Wollstonecraft, the Seneca Falls Convention, the suffrage movements. And, in India, reform movements around widow remarriage, education and child marriage, with figures such as Pandita Ramabai and Savitribai Phule.

Second wave (1960s–1980s) — beyond formal rights to structures: work, family, sexuality, reproduction, violence. Friedan's The Feminine Mystique (1963) with its "problem that has no name"; the domestic labour debate; the establishment of rape crisis centres and refuges; and the slogan "the personal is political" (Carol Hanisch, 1970), which is the theoretical claim that the private sphere is a site of power and therefore a legitimate object of politics and analysis.

Third wave (1990s onwards) — intersectionality, difference, the critique of a universal "woman," queer theory, and Butler's challenge to the sex/gender distinction.

Fourth wave (2010s onwards) — digitally organised, with #MeToo as its most visible instance, and a renewed focus on sexual violence and workplace harassment.

The internal debates, which are real

Feminist theory is not one position, and the disagreements are substantive.

Liberal feminism — equal rights, equal access, reform of law and institutions. Criticised as insufficient: formal equality within unchanged structures produces limited change, and it best serves women already advantaged in other respects.

Marxist and socialist feminism — locating women's subordination in capitalism and social reproduction. Criticised for subordinating gender to class, and for the "unhappy marriage of Marxism and feminism" (Heidi Hartmann, 1979): "the 'marriage' of Marxism and feminism has been like the marriage of husband and wife depicted in English common law: Marxism and feminism are one, and that one is Marxism."

Radical feminism — patriarchy as the primary and irreducible system of domination, with sexuality, reproduction and violence at its centre. Millett, Firestone, MacKinnon, Dworkin. Criticised for universalising the experience of particular women and for treating patriarchy as transhistorical.

Black feminism and intersectionality — the critique that "women" as a category was constructed from white middle-class experience. Crenshaw's demarginalizing essay (1989) is the founding statement of intersectionality; bell hooks's Ain't I a Woman (1981) and the Combahee River Collective Statement (1977), which stated the interlocking systems argument before either. Treated fully in 8.7.

Postcolonial feminismChandra Talpade Mohanty's "Under Western Eyes" (1984) is the key text: Western feminist scholarship, she argues, constructs a singular "Third World Woman" as uniformly poor, uneducated, victimised and tradition-bound, against an implicit Western feminist norm of the modern, educated, free agent. This is Orientalism inside feminism, and Mohanty's critique is one of the most consequential in the field. Spivak's "Can the Subaltern Speak?" (1988) poses the harder version: whether the subordinated can be represented at all without their speech being appropriated. Part 6 takes both.

And "the sex wars" of the 1980s on pornography, sex work and sexuality, which divided the field sharply and have not resolved.

What feminist theory changed about sociology

Not a list of new topics but a set of alterations to the discipline's machinery.

Class measurement. The convention of assigning household class from the male head's occupation was demolished, and the debate produced substantially better measurement — individual classification, and analysis of cross-class households.

Work. The category was expanded to include unpaid domestic and care labour, emotional labour (Hochschild, 4.1.4), and the recognition that the standard employment relationship presupposes someone else doing the reproduction.

Violence. Reconceptualised from stranger assault to a continuum including domestic violence, sexual violence and coercive control, with corresponding changes to measurement — crime surveys had systematically undercounted because of question wording and interview conditions.

Method. The interview relationship reconsidered (Ann Oakley's classic 1981 critique of the standard interviewing manual's demand for detachment); the ethics of research on subordinated groups; and reflexivity as a methodological requirement rather than an optional confession.

Health. The recognition that clinical trials conducted on male subjects produced medicine calibrated for men, with documented consequences for diagnosis and dosing.

And the discipline's own history. The recovery of Martineau, Addams, Cooper, Gilman, Marianne Weber and the Chicago women (4.6.1) is feminist scholarship's work.

Why it matters

It is the largest correction in the discipline's history. Part 4 identified gender as the founders' greatest omission (4.6.4). This is the repair, and it required rebuilding measurement, categories, methods and the canon — not adding a chapter.

It supplies the concept the economy was missing. Social reproduction names the work without which no labour force exists, and the demonstration that it is unmeasured, unpaid, unequally distributed and consequential for pensions, employment and poverty is one of the more useful things sociology has established.

It produced the discipline's most rigorous epistemology. Standpoint theory, strong objectivity and situated knowledges together constitute the best available answer to the question of how positioned knowers can produce reliable knowledge — better than the pretence of a view from nowhere, and better than relativism.

And it demonstrates the general lesson this course has now made five times. A discipline that draws its practitioners from a narrow position will build categories that fit that position and present them as universal. The correction requires people from other positions, and it arrives late, and the field is ignorant in the meantime. Gender is the largest case. It is not the last one.