International Dance Day (World Dance Day) has been celebrated on April 29 through promotion by the International Dance Council (CID), an umbrella organization within UNESCO for all kinds of dance.
The holiday was introduced in 1982 by the International Dance Committee of the UNESCO International Theatre Institute. The date was suggested by Pyotr Gusev to commemorate the birthday of Jean-Georges Noverre.
Among the goals of the Dance Day are to increase the awareness of the importance of dance among the general public, as well as to persuade governments all over the world to provide a proper place for dance in all systems of education, from primary to higher. Source