Of all these researchers, the most influential early promoters of sexology were Iwan Bloch, Albert Moll, Magnus Hirschfeld, and Richard von Krafft-Ebing. All four were German and were working around the turn of the 20th century. Another researcher, Havelock Ellis, was working in London to establish the field of sexology.
Early Promoters of Sexology
Several people were responsible for the early promotion of sexology, including Iwan Bloch, Albert Moll, Magnus Hirschfeld, Richard von Krafft-Ebing, Havelock Ellis, Katharine Bement Davis, Clelia Mosher, Alfred Kinsey, Morton Hunt, William Masters, and Virginia Johnson. All of these researchers made a tremendous contribution to the study of sexology.