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 Gaber Ernst Gaber Ernst Gaber (6 June 1907 – 13 August 1975) was a German rower who competed in the 1928 Summer Olympics, in the 1932 Summer Olympics, and in the 1936 Summer Olympics. In 1928 he was part of the German boat which placed fifth after being eliminated in the quarter-finals of the eight event. Four years later he won the silver medal as member of the German boat in the coxless fours competition. He was also part of the German boat which eliminated in the repechage of the eight event. In 1936 he won the gold medal as part