1941 Four thousand Chongqing residents are asphyxiated in a bomb shelter during the Bombing of Chongqing.
1945 The Chinese Communist Party and the Kuomintang signed a principle agreement in Chongqing about the future of post-war China. Later, the pact is commonly referred to as the Double-Ten Agreement.
2003 PetroChina Chuandongbei natural gas field explosion, Guoqiao, Kai County, Chongqing, China, killing at least 234.