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 Boerschmann Ernst Boerschmann Ernst Boerschmann (18 February 1873 - 30 April 1949) was a German architect, photographer and sinologist. Ernst Boerschmann was born in Priekulė, Lithuania, Klaipėda Region, Lithuania, on February 18, 1873. His brother Friedrich Börschmann (1870-1841) was a physician and social democratic members. His sister Anna Börschmann (1871-1939) was an educator. Boerschmann attended the Humanistische Gymnasium in Memel. He entered the Technical University of Berlin in 1891, majoring in architecture, where he graduated in 1896. After college, he joined the "Staatsexamen" and graduated in 1901 as an assessor in the Prussian Building. From 1902 to 1904, he was an