In England, the founding father of sexology was the doctor and sexologist Havelock Ellis who challenged the sexual taboos of his era regarding masturbation and homosexuality and revolutionized the conception of sex in his time. His seminal work was the 1897 Sexual Inversion, which describes the sexual relations of homosexual males, including men with boys. Ellis wrote the first objective study of homosexuality (the term was coined by Karl-Maria Kertbeny), as he did not characterize it as a disease, immoral, or a crime. The work assumes that same-sex love transcended age taboos as well as gender taboos. Seven of his twenty-one case studies are of inter-generational relationships. He also developed other important psychological concepts, such as autoerotism and narcissism, both of which were later developed further by Sigmund Freud.
In England the founding father of sexology was the doctor and sexologist Havelock Ellis who challenged the sexual taboos of his era regarding masturbation and homosexuality and revolutionized the conception of sex in his time His seminal work was the 1897 Sexual Inversion which describes the sexual relations of homosexual males including men with boys Ellis wrote the first objective study of homosexuality (the term was coined by Karl-Maria Kertbeny) as he did not characterize it as a disease immoral or a crime The work assumes that same-sex love transcended age taboos as well as gender taboos Seven of his twenty-one case studies are of inter-generational relationships He also developed other important psychological concepts such as autoerotism and narcissism both of which were later developed further by Sigmund Freud