Hisashi HOSHINO and Katsuro HARA, historians in the Meiji period, thought that at least the latter half of "Azuma Kagami" was a diary, although the way the two defined the term was very different.
明治時代の歴史学者星野恒と原勝郎は、範囲にだいぶ隔たりはあるのだが『吾妻鏡』の少なくとも後半は日記だろうとした。