Societal attitudes towards same-sex relationships have varied over time and place, from expecting all males to engage in same-sex relationships, to casual integration, through acceptance, to seeing the practice as a minor sin, repressing it through law enforcement and judicial mechanisms, and to proscribing it under penalty of death. In a 1976 study, Gwen Broude and Sarah Greene compared attitudes towards and frequency of homosexuality in the ethnographic studies available in the Standard cross-cultural sample.