The Utrecht rainbow canon has a new story: “From sodomite to homosexual“. A whole procession of domestic and especially foreign ‘experts’ sought explanations for deviant sexual behavior. At first we only knew the sodomite, but in the course of the century the pederast, the uranist, the urninde and the homosexual, among others, made their appearance. Maurice van Lieshout outlines the development in the 19th century.