
  Queer Places:
  Iwan-Bloch-Straße, 27753 Delmenhorst, Germany
   Iwan 
  Bloch (also known as Ivan Bloch) (April 8, 1872 – November 21, 1922) was a 
  German dermatologist and psychiatrist. Born in Delmenhorst, Grand Ducal 
  Oldenburg, 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. In 1899 he had published Marquis de Sade: his life and works. under the 
  same pseudonym. Together with Magnus 
  Hirschfeld and Albert Eulenburg, Bloch proposed the new concept of a 
  science of sexuality: Sexualwissenschaft or sexology. In 1906 he wrote in 
  German the book Das Sexualleben unserer Zeit in seinen Beziehungen zur 
  modernen Kultur which was translated as The Sexual Life of our Time in its 
  Relations to Modern Civilization, a complete encyclopedia of the sexual 
  sciences in their relation to modern civilization.[1][2]
Iwan 
  Bloch (also known as Ivan Bloch) (April 8, 1872 – November 21, 1922) was a 
  German dermatologist and psychiatrist. Born in Delmenhorst, Grand Ducal 
  Oldenburg, 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. In 1899 he had published Marquis de Sade: his life and works. under the 
  same pseudonym. Together with Magnus 
  Hirschfeld and Albert Eulenburg, Bloch proposed the new concept of a 
  science of sexuality: Sexualwissenschaft or sexology. In 1906 he wrote in 
  German the book Das Sexualleben unserer Zeit in seinen Beziehungen zur 
  modernen Kultur which was translated as The Sexual Life of our Time in its 
  Relations to Modern Civilization, a complete encyclopedia of the sexual 
  sciences in their relation to modern civilization.[1][2] 
According to Sigmund Freud, Bloch's studies were instrumental in the development of the anthropological approach to the theory of sexuality. Before Bloch, homosexuality was analyzed using a pathological approach.[3]
My published books: