In Nihon Shoki, the year of Emperor Jimmu's accession to the throne is taken as the year of the "辛酉, Shin-Yū, Kanoto-tori" (the year in Sexagenary cycle. See "ja Article"). According to the calculation method established in the Meiji era (1868-1912), taking into account the Shin'i theory (Chinese prophecy theory) and the "Shin-Yu Revolution theory", this year is 660 BC. In the past, this was considered a historical fact, but it is not usually considered a fact at present.[7] For more information, see Japanese imperial year.
Mizokui Shrine [ja] refers to Mishima no Mizokuhi as the founder of the shrine[3] and says that the Mishima clan would have been a powerful clan in the ancient Kawachi region.[25]
In modern Japan (before the gathering of the World War II), the origins of iron manufacturing in Japan have been traced back to the "period of gods" (神代, kamiyo or shindai),[34] with episodes in the Nihon Shoki and the Kojiki stating that when Amaterasu hid in Amano-Iwato, iron from "Ama-no-kaguyama (天香山, in Nihon Shoki)" or "Ame-no-kanayama (天金山, in Kojiki)" was used for metalworking. (Nihon Shoki)" or "Amakinzan (Kojiki)".[34][36] In modern times, it is generally accepted that iron making technology was introduced from mainland China along with rice cultivation,[36] but archaeological evidence is insufficient,[36] and no definitive theory has been established about its origin or age.[34] In terms of literary sources, iron manufacturing is specifically detailed in the Izumono Kuni Fudoki [ja] of the 8th century, and it is thought that iron manufacturing was already established in this period.[34]
Teiichi Suzumoto (Chemical Society of Japan) has argued that the huge Emperor Nintoku's Mausoleum, which dates from around the early 5th century, was probably made possible to build by the establishment of iron tools, and that the Yamato Imperial Court of the time probably had secured tatara iron technology.[34] Fuigo has been excavated from the Higashi Nara Ruins [ja] (in Ibaraki City, Osaka Prefecture), and some have linked this to iron manufacturing by the Yamato Court.[37] At this Higashinara site (discovered in 1971), Dōtaku and their casts have been excavated, and it is certain that bronze bells were made there.[38]
The Isagawa Shrine [ja] is a regent shrine of the Miwasan and Ōmiwa Shrine, which is said to be the hometown of Himetataraisuhime.[17]
Aston, William George (1896). "Book I" . Nihongi: Chronicles of Japan from the Earliest Times to A.D. 697. Kegan Paul, Trench, Trübner & Co. p. 61–62 – via Wikisource.
Aston, William George (1896). "Book III" . Nihongi: Chronicles of Japan from the Earliest Times to A.D. 697. Kegan Paul, Trench, Trübner & Co. p. 132 – via Wikisource.
Aston, William George (1896). "Book IV" . Nihongi: Chronicles of Japan from the Earliest Times to A.D. 697. Kegan Paul, Trench, Trübner & Co. p. 138 – via Wikisource.