Dr. Grafenberg, and the "G-spot" or "G-area"
Dr. Grafenberg (1881-1957) is credited with helping to identify the special attributes of the female anatomy that became known as the "G-spot", or, more recently, the "G-area", named in honor of the Grafenberg's scientific efforts. He was a German doctor who specialized in gynecology in an era when contraception was not reliably available, and he introduced the first IUD. He was helped by Margaret Sanger, the social activist, to relocate to the New York during the Nazi regime, where he lived and practiced in the later part of his life.
Controversy around the topic of the nature of the G-area is ongoing. The role of the spongy tissue that runs along the female uretha is still being evaluated, but many assertions have been made as to the G-area's role in enhancing pleasure, lubrication and orgasmic potential. For more information, refer to: https://en.wikipedia.org/wiki/G-spot