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,
Ernst Gottfried Baldinger Ernst Gottfried Baldinger Ernst Gottfried Baldinger (13 May 1738 – 21 January 1804), German physician, was born in Großvargula near Erfurt. He studied medicine at Erfurt, Halle and Jena, earning his MD in 1760 under the guidance of Ernst Anton Nicolai and in 1761 was entrusted with the superintendence of the military hospitals connected with the Prussian encampment near Torgau. He published a treatise in 1765, "De Militum Morbis," which met with a favourable reception. In 1768, he became professor of medicine at Jena, which he left in 1773 for Göttingen, and in 1785 he moved to Marburg, where he