The philosopher, jurist and social scientist Jeremy Bentham (1748-1832) is considered UCL's spiritual father, and wrote widely on sex, population growth and wellbeing. Writing around the time of the UK's demographic transition, this symposium explores Bentham's changing views on population growth, and how he influenced the discourse on population in the 1820's, as well as exploring Bentham's work on sex. How are Bentham's seminal writings on sex important not only for the history of sex, but for current debates on sex, population and global health?