May 23, 1951:  An agreement that declares Tibet's peaceful liberation

May 23, 1951: The Central People's Government and Tibetan local government sign an agreement in Beijing that declares Tibet's peaceful liberation

May 23—June 6, 1985: An enlarged meeting of the Central Military Commission is held in Beijing to discuss the strategy of reducing army staff numbers

May 23—27, 1991: The Fourth National Congress of the China Science and Technology Association is held in Beijing

May 23, 2007: The State Council issues a "Notice on a Comprehensive Work Program for Energy Reduction"