The Autonomous University of Madrid has an active student body, having organised one of Spain's most important events against the dictatorship in 1976 called the Iberian Peoples Festival. It had an attendance of over 70,000. UAM has over a hundred student societies covering activities ranging from student unionism to theatre and music. The oldest active association in UAM is the Law Students Association (AED in Spanish), a left-leaning student union established in 1981. Furthermore, there are new prominent societies in the field of social sciences, such a Debate Society (Sociedad de Debates UAM) and a Model UN society (UAM-I-MUN), both founded and run mainly by law students.