Staff members of the Nanjing Municipal Archives show files of Nanjing Massacre in Nanjing, capital of east China's Jiangsu Province, on Dec. 8, 2015. China has published files from the war crimes investigation into the Nanjing Massacre ahead of the national memorial day for the atrocity. The 15 files are just a small selection of the 2,784 which the Nanjing Provisional Municipal Council compiled between July and November 1946 and which have been listed in the Memory of the World Register by UNESCO. (Photo: Xinhua/Sun Can)
