Tomio Hora (Japanese: 洞 富雄, Hepburn: Hora Tomio; 14 November 1906 – 15 March 2000) was a Japanese historian and Waseda University professor, well known for his pioneering efforts to push back against Nanjing Massacre denial inside Japan.
Source: “Tomio Hora”, English Wikipedia (CC BY-SA 4.0), excerpt