A Conundrum of the Japanese Histories

We incline to understand that historical events, which might occur in ancient times in Japan, described in the Chronicles of Japan, were edited in time series. If the Sumera-mikoto wedded Hime-tatara-isuzu-hime who was a daughter of Oo-ana-muchi-no-mikoto or of his son, Kotoshiro-nushi-no-mikoto, it is probable that most of events should have happened in a short space of time, although the Sumera-mikoto stated that 1792470 years had passed since Ninigi-no-mikoto had descended from the heaven.