as well. Magnus Hirschfeld, a German sexologist, began to similarly explore the sexual impulses and behaviours of transgender individuals, and eventually gender reassignment surgery. With the help of medical professionals, the first full gender reassignment surgery was completed in Hirschfeld's clinic in 1931 on Lili Elbe.

Although Ellis' book was not published everywhere until years after its initial release in the United States, it opened the door to a more accepting view on transgenderism and other sexual perversions, and for the first time disconnected these concepts from mental illness.

Transgenderism in the 21st century 
Although transgenderism is said to be the modern equivalent and expansion on Ellis’ eonism, exact equivocation may not be possible. Although there are many similarities, today transgenderism is separated from transvestitism; a distinction that was notas evident in Ellis' works and his eonism seems to incorporate both transvestism and transgenderism. This blurred distinction is further emphasized by the fact that medical procedures available nowadays were not available during Ellis' time. The first official gender reassignment procedure was performed in 1931 – 3 years after the publication of Ellis' last volume - on Lili Elbe, a Danish transgender woman living in (Germany). Regardless of the exact equivocation of eonism, transgenderism is still a complicated topic today. While homosexuality was legalised under the Sexual Offences Act of 1967 and helped to normalise different sexual practices, it was not until 2002 that the U.K. officially declared transgenderism as not being a mental illness, and even later in 2004 that it was allowed for these individuals to