The Allmänna Sången choir (Public Song) is one of the oldest university choirs in Scandinavia and was founded in 1830. However, it was a strictly mens choir up until 1963 when it was decided that it would be a mixed choir with both men and women.
In 2013 it celebrated its 50th anniversary as being mixed and performed at Uppsala University. The special guest for the event was the Swedish Crown Princess Victoria.
Read more about the choir on their website
http://www.allmannasangen.se