Magnus Hirschfeld was born in Kolberg in 1868 as the son of a doctor. Before the turn of the century, the son would also turn his attentions to medical science. He rejected the conceptual opposition between man and woman in favor of the notion that each individual contains both male and female aspects. He advocated for tolerance towards sexual orientations such as homosexuality, bisexuality and transvestism. In 1897 he founded a gay rights association out of his apartment (today: Otto-Suhr-Allee 93). From 1907 to 1909 Hirschfeld served as a court-appointed expert in the Harden-Eulenburg Affair, which revolved around the alleged homosexuality of members of the court of Kaiser Wilhelm II. The Institut für Sexualwissenschaft (Institute for Sexual Research), which Hirschfeld founded privately, existed until 1933. He died in exile in 1935.