After the war, Eiyu Shikan (hero-centered historiography) or Kokoku Shikan (emperor-centered historiography which is based on state Shinto) were eliminated and the empirical study on the medieval history or the Takeda clan were conducted.
戦後は、英雄史観や皇国史観を廃した実証的研究が中世史や武田氏研究でも行われるようになった。