29 August 1867,
Lawyer and writer Karl Heinrich Ulrichs publicly defended gay rights. This was the first time that the German Congress of Jurists had called for the elimination of laws against homosexuals. The rest of the men in Congress, shouting, did not allow him to conclude. Three years earlier, his books were banned and confiscated in Saxony, Berlin and many places in Prussia. In Germany he is recognised as the first man to publicly declare his homosexuality.
Source:
Hubert Kennedy, Karl Heinrich Ulrichs. Pioneer of the Modern Gay Movement.