The first official military parade in Communist Mongolia took place in 1921 in honor of the victories of Damdin Sükhbaatar in the People's Revolution. The anniversary parades that followed have been held on jubilee years (specifically in 1946, 1951, 1956, 1961, 1966, 1971, 1976, 1981, 1986 and 1991). After 1991, the practice was abandoned with the exception of 1996 when a parade in the National Sports Stadium commemorated the 790th anniversary of the founding of Mongolia and the 75th anniversary of the People's Revolution. After a 9-year break, the 2005 inauguration ceremony of Nambaryn Enkhbayar served as an event to hold a military parade on the central square. This took place again in 2009 for the inauguration of Tsakhiagiin Elbegdorj. That same year, State Flag Day was introduced as a national holiday, which would also be celebrated with a parade.