Nanjing in East China's Jiangsu province. A student from Henan University lays flowers at a monument in memory of the victims killed by Japanese soldiers during the 1937 Nanjing Massacre, Dec 12, 2015. [Photo/IC]

China's National Memorial Day for Nanjing Massacre Victims will fall on Sunday, Dec 13, 2015. The same day in 1937, Japanese troops captured Nanjing and started a slaughter that lasted more than 40 days, killing more than 300,000 Chinese soldiers and civilians and raping about 20,000 women.