Here, the year of Emperor Kinmei's enthronement which was figured out by counting backwards from the periods of his reign is different from the year mentioned in "Nihonshoki" (it states that the year of enthronement was 538), which stirred controversy among the scholars.
ここでは、欽明天皇の治世年数（辛卯年より卅一年（31年）前）から逆算した即位年が『日本書紀』（宣化天皇4年に即位）と相違し、学者の論争の的となっている。