People visit the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Sept. 17, 2015. Documents of the Nanjing Massacre from China were inscribed on the Memory of the World Register by the International Advisory Committee of UNESCO's Memory of the World Programme, UNESCO announced on Oct. 9 in a press release. (Xinhua/Yan Minhang)