('On February 11, 660 B.C., the Emperor acceded to the throne at Kashiwara no Miya Shrine and this year was made the first year of the Emperor'; "Chronicles of Japan," Paragraph on February 11, the first year of Emperor Jinmu.)
（「辛酉年春正月庚辰朔天皇即帝位於橿原宮是歳爲天皇元年」『日本書紀』神武天皇元年正月朔の条）。