The Genealogy of "Gender Identity"

The term "gender" was originally a linguistic category. Its transformation into a social and psychological "identity" separate from biological sex was driven by specific academic milestones:


John Money (1950s): The psychologist who first introduced the distinction between biological sex and "gender role," theorizing that gender was learned rather than innate.


https://embryo.asu.edu/pages/david-reimer-and-john-money-gender-reassignment-controversy-johnjoan-case



Judith Butler (1990): In Gender Trouble, Butler argued that gender is not something one is, but something one does. This is the "performative" aspect of Queer Theory—the idea that "woman" is a repeating set of acts rather than a biological category.


https://selforganizedseminar.wordpress.com/wp-content/uploads/2011/07/butler-gender_trouble.pdf


Intersectionality: This framework, popularized by Kimberlé Crenshaw, provided the "glue" for the ever growing LGBTQ+ acronym. It posits that all marginalized identities must be unified in a single political struggle against a perceived "heteronormative" and "patriarchal" power structure.

 https://www.law.columbia.edu/news/archive/kimberle-crenshaw-intersectionality-more-two-decades-later