Ernst Gräfenberg Ernst Gräfenberg Ernst Gräfenberg (September 26, 1881 in Adelebsen near Göttingen, Germany – 28 October 1957 in New York City, United States) was a German-born physician (medical doctor) and scientist. He is known for developing the intrauterine device (IUD), and for his studies of the role of the woman's urethra in orgasm. The G-spot is named after him. Gräfenberg studied medicine in Göttingen and Munich, earning his doctorate on 10 March 1905. He began working as a doctor of ophthalmology at the university of Würzburg, but then moved to the Department of Obstetrics and Gynaecology at the University of Kiel,
Carl Ernst Bock Carl Ernst Bock Carl Ernst Bock (February 21, 1809 – February 19, 1874) was a German physician and anatomist. Born in Leipzig to anatomist Carl August Bock, he studied at the University of Leipzig, from which he graduated in 1831. During the November Uprising in Poland, he served as a hospital physician for both the Polish and Russian armies. On returning to Leipzig in 1832 he became a private lecturer, and in 1837 was appointed to preside over autopsies at Leipzig's hospital. In 1839 he was appointed extraordinary professor of pathological anatomy, and in 1850 became head of the university's