The organizations and clubs accredited at Queen's cover a wide range of interests, including academics, culture, religion, social issues, and recreation. The oldest accredited club at Queen's is the Queen's Debating Union, which was formed in 1843 as the Dialectic Society. The Dialectic Society served as a form of student government until the AMS was formed from the Dialectic Society in 1858. The Queen's Bands is a student marching band, founded in 1905, which claims to be the oldest student marching band in Canada. Fraternities and sororities have been banned at the university since a ruling by the AMS in 1933. The ruling was passed in response to the formation of two fraternities in the 1920s. No accredited sororities have ever existed at Queen's.