Ernst Gräfenberg [SEP] place of birth
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.
Career.
Gräfenberg studied medicine in Göttingen and Munich, earning his doctorate on 10 March 1905. He began working
by Ernst Gräfenberg in the late 1920s.
Modern birth control movement.
Birth control became a contested political issue in Britain during the 19th century. 
The economist Thomas Malthus argued in "An Essay on the Principle of Population" (1798) that population growth generally expanded in times and in regions of plenty until the size of the population relative to the primary resources caused distress. He demonstrated that two types of checks hold population within resource limits: "positive" checks, which raise the death rate; and "