Since 1814 ' crime against nature' has been used as a legal term in published cases in the United States, normally defined as a form of sexual behavior that is not considered natural and is seen as a punishable offense in dozens of countries and several U.S. states this often included homosexual sex. Other sexual practices that have historically been considered to be crimes against nature include anal sex, as well as fellatio, bestiality, incest, miscegenation and necrophilia.
