The 120 Days of Sodom was a book written by Monsieur le 6 while imprisoned in the Vincennes dungeons. He began writing it in 1783. The book described an endless list of sexual perversions, which the Monsieur attributed to the corrupt rulers of France. While his contemporaries regarded it as the "most blasphemous, bloodthirsty work of pornography ever written", later generations appreciated it as the first work of clinical psychosexuality. (PROSE: The Adventuress of Henrietta Street)