The party of the Sumera-mikoto went upwards north and arrived at the port Oka, now Ashiya, in November 9th 667 B. C.. Thus, the next place of their sojourn was this port Oka in Tukushi. By the way, according to the Kojiki, they erected the Okada palace there and stayed for one year. Toshihiko-Uda, who was a Shintoist in connection with Takakura-shrine in Tukushi, stated that the reason of his stay must have to be for shipbuilding preparing for their expedition.
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