> Societal gender norms have existed for probably as long as humans have
Or gender norms have existed since gender was defined in the 70s-80s by feminist scholars. Before that was only sex, which biologists know to be not a binary but a bimodal distribution, itself.
Or gender norms have existed since gender was defined in the 70s-80s by feminist scholars. Before that was only sex, which biologists know to be not a binary but a bimodal distribution, itself.