Xie Xueshi, an 86-year-old researcher focusing on the history of China-Japan relations at the Jilin Provincial Academy of Social Sciences in Changchun, has devoted more than 50 years to unveiling the truth of a Japanese railway construction company’s offences in Manchukuo, the puppet state established by the Empire of Japan in Northeast China.

Photo taken on Dec 4 shows Xie Xueshi in an archive in Changchun, which holds all kinds of reference materials about South Manchuria Railways Co, Japan’s largest colonial group in Northeast China. [Photo by Xu Chang/Xinhua]