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 Meyer (German politician) Ernst Meyer (German politician) Ernst Meyer (10 July 1887, Prostken – 2 February 1930, Potsdam) was a German Communist political activist and politician. He is best remembered as a founding member and top leader of the Communist Party of Germany and as the leader of that party's fraction in the Prussian Landtag. A political opponent of Ernst Thälmann, Meyer was moved out of the top party leadership after 1928, not long before his death of tuberculosis-related pneumonia at the age of 43. Ernst Meyer was born in 1887 in Prostken, East Prussia. Meyer studied economics and philosophy at the University