On this day in 1935...

... Sigmund Freud wrote to a distressed mother to say that 'homosexuality was nothing to be ashamed of'.

See a scan of the actual letter (in English!!) here:

http://www.lettersofnote.com/2009/10/homosexuality-is-nothing-to-be-ashamed.html

With thanks to @LGBTSpace for tweeting this link.