On the other hand, the editor of the Kojiki scarcely left the dates from which we can infer correct years when historical events occurred in the ancient times of Japan. It is regretful for us that confirmation of dates of ancient events is nearly impossible by 91. A.D. when Sujin-Tennow ascended the Sumera-mikoto.
Concerning the setting of the first year of the Sumera-mikoto, the editor of the Chronicles of Japan must have regarded the accession to the throne at the Kashi-hara palace as a great revolution in the Japanese history. Therefore, even if 660B.C. would be a fictitious year, he dared to set it on the Shinn-Yuu which had been believed as a revolutionary year, according to the theory of the Shinn-I-Reki-Unn.
The year of the national foundation of Japan, 660 B.C., falls on that of the Sinn-Yuu. According to the theory of the Shinn-I-Reki-Unn, which counts years with a sixty-agenary cycle, Years of Sinn-Yuu come every sixty years and it has been considered that some revolutionary events were to break out during this year.
Though it is plausible that the first nation in Japan should have been found in the seventh century B.C. as described in the history book, the year of the national foundation, 660 B.C., must have been set up intentionally by the editor of the Chronicle of Japan who wished to give meaning to it.
It has been generally believed that the Yayoi-era, when some tribes came across the sea from the west and introduced a rice crop in the Japanese Archipelago with irrigating the paddy field, begun in the third century B.C. Recently, however, excavations of ruins suggest that the time of the beginning of the Yayoi-era could go back to more than two hundred years before that of the established theory.
The editor of the Chronicles of Japan describes that the first day of 660 B.C., the Sumera-mikoto ascended to the throne at the palace of Kashi-hara. This is not only the regnal year of Jinmu-Tennow, but also the first year of the Imperial reign, which is called “Kou-ki” in Japanese.
Now, apart from the text of the Kojiki, which explains in detail concerning the relative by marriage, the line of the earthy deity, we shall return to that of the Chronicles of Japan where the Sumera-mikoto played a stellar role. Following the story of marriage with Himetatara-isuzu-hime, the editor described about the coronation of the Sumera-mikoto.
The residence where Hime-tatara-isuke-yorihime made a living with her family was located at the side of the upper stream of Sai river. Then the Sumera-mikoto visited her house to marry her. This is called a live-apart marriage, which prevailed in ancient times of Japan as ordinary way of marriage.
From this description, one may say that it is certain that Kume tribe had a different custom from others, which was to paint or tattoo dark circles around their eyes with eyeliners. That must have been a first time Hime-tatara-isuke-yorihime saw such a strange custom.
