Thomas Rabe, grandson of the late John Rabe, lays a wreath during the inauguration ceremony of the Monument of John Rabe in Berlin, Germany, Dec 12, 2013. Sponsored by the Nanjing government, the monument was built to honor John Rabe, a German who saved numerous Chinese during the Nanjing Massacre by Japanese invaders. His diary is deemed as one of the most important and detailed historical materials on the massacre. [Photo/Xinhua]