Genocide in China (Nanking) By SPH1998 Dec 13, 1937 Nanking, China is in Asia. Nanking, China is in Asia. Period: Dec 13, 1937 to Jan 31, 1938 Nanking Massacre Lasted six weeks. Dec 14, 1937 This genocide took place in Nanking. This genocide took place in Nanking. Dec 15, 1937 Chinese civillians and unarmed soldiers were killed. Chinese civillians and disarmed soldiers were killed. Dec 16, 1937 Soldiers of the Imperial Japanese Army did the killing. Dec 17, 1937 These groups were being targeted because someone wanted to take over Nanking. Dec 17, 1937 Nanking mayor Ma Chao-chung ordered all Chinese citizens in Nanking to a "safety zone" Ma Chao-chun is pictured Dec 18, 1937 People being tortured Jan 31, 1938 The massacre ended.