Li Gaoshan demonstrates a certificate of survivors of the Nanjing Massacre, Nov. 21, 2016. Li Gaoshan, born in 1925 in south China's Guangdong Province, attended the battle of Nanjing in 1937 when he was 13 years old. He escaped from death after being arrested by Japanese troops. Japanese troops occupied eastern China's Nanjing on Dec. 13, 1937, and began a six-week massacre. Chinese records show more than 300,000 people -- not only disarmed soldiers but also civilians -- were brutally murdered and thousands of women raped. In the past 79 years, the number of survivors decreases. After Zhang Fuzhi, 89, passed away on Nov. 26, 2016, the number of the registered survivors reduced to 108. With hurt that are unable to heal and tragic memory of suffering, survivors are the witnesses of the massacre. (Xinhua/Han Yuqing)