Iwan Bloch was a Berlin dermatologist Born in Delmenhorst, Germany, he is often called the first sexologist. He discovered the Marquis de Sade's manuscript of "The 120 Days of Sodom", which had been believed to be lost, and published it under the pseudonym Eugène Dühren in 1904. Wikipedia
The definitive Wikipedia entry for Iwan Bloch. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Iwan_Bloch
