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-Robert Grawitz approval. Towards the end of World War II in Europe, Grawitz was a physician in Adolf Hitler's "Führerbunker". When he heard that other officials were leaving Berlin in order to escape the advancing Soviet Red Army, Grawitz petitioned Hitler to allow him to leave Berlin; his request was denied. As the Soviet Army advanced on Berlin, Grawitz killed himself and his family with grenades at their house in Babelsberg. Ernst-Robert Grawitz Ernst-Robert Grawitz (8 June 1899 – 24 April 1945) was a German physician and an SS functionary ("Reichsarzt", "arzt" meaning "physician") during the Nazi era. Grawitz was born in