Before revision: Notable contributors This is a list of sexologists and notable contributors to the field of sexology, by year of birth: Karl Heinrich Ulrichs ( 1825-1895 ) Karl Friedrich Otto WestphalFoucault, Michel.
After revision: Notable contributors This is a list of sexologists and notable contributors to the field of sexology, by year of birth: Karl Heinrich Ulrichs ( 1825–1895 ) Karl Friedrich Otto WestphalFoucault, Michel.