- Category : 1879-births
- Type : PE
- Profile : 1/3 - Investigating / Martyr
- Definition : Triple Split
- Incarnation Cross : RAX Consciousness 4
Italian historian and political activist, an intellectual figure important in two separate fields: the history of science, and the gay liberation movement of which he was a pioneer. He died in Florida, Argentina, on 16 February 1950, aged 70.