(SHEN PENG)

More than 7,000 historical documents, objects and photographs bearing testimony to the Japanese invasion of China during World War II are displayed in Nanjing, east China's Jiangsu Province, on December 8.

The items, which were gathered from 14 countries, including China, the United States, Japan, Britain and Germany, were exhibited before China's first National Memorial Day for Nanjing Massacre Victims on December 13. National Memorial Day, established by Chinese lawmakers in February, aims to mourn the victims of the notorious massacre and all those killed by Japanese invaders.

During the more than 40 days following Japanese troops' capture of Nanjing, China's capital city at the time, on December 13, 1937, more than 300,000 civilians and soldiers that had surrendered were murdered.