This document discusses sex, gender, and sexuality. It defines sex as the biological dimensions assigned at birth based on anatomy and chromosomes, while gender is the social and cultural expectations and identities associated with one's sex. It notes that while sex is usually binary, some people are intersex or transgender. Sexual orientation pertains to one's emotional and sexual attractions. The document then discusses how views of gender and sexuality have changed over time as societies developed, with many historically having patriarchal systems that subordinated women and restricted their roles and rights. It outlines various women's movements that aimed to challenge patriarchal structures and gain equal rights.