In addition, there is another idea to define the dates in "Nihonshoki" based on the Oriental zodiac of the year of emperors' deaths in "Kojiki," but it is not supported by many scholars for the above reasons.
また『古事記』の天皇崩御年干支を基に、『日本書紀』の年次を探ろうとする考えもあるが、前述の理由により多くの学者の支持を得られていない。