Hisao Ōtsuka (大塚 久雄, Ōtsuka Hisao; 3 May 1907 – 9 July 1996) was a Japanese historian, founder of an influential historiographic school in postwar Japan known as the Ōtsuka Historical School (大塚史学, Ōtsuka shigaku).
Source: “Hisao Ōtsuka”, English Wikipedia (CC BY-SA 4.0), excerpt
