Iwase Province

Map of the former Japanese provinces with Iwase highlighted

Iwase Province (石背国, Iwase no Kuni) is an old province of Japan lasting for a brief period of time in the Nara period in what is now western Fukushima Prefecture^[1]

History

Iwase Province was created during the reign of Empress Genshō.^[2] The Yōrō Ritsuryo established the Iwase Province in 718 through the division of the Michinoku Province (Mutsu Province). It was composed of five districts of Shirakawa (白河), Iwase (石背), Aizu (会津), Asaka (安積) and Shinobu (信夫).

The area encompassed by the province reverted to Mutsu some time between 722 and 724. Some scholars have suggested that this innovation may have been motivated by economic considerations.^[2]

Historical districts

Aizu District (会津郡)
Asaka District (安積郡)
Iwase District (岩瀬郡)
Shinobu District (信夫郡)
Shirakawa District (白川郡, East Shirakawa)

Notes

↑ Kodama. (1958). 図日本文化史大系, p. 30; excerpt, 石背国 718-724?
1 2 Meyners d'Estrey, Guillaume Henry Jean (1884). Annales de l'Extrême Orient et de l'Afrique, Vol. 6, p. 172, p. 172, at Google Books; excerpt, Genshō crée sept provinces : Idzumi, Noto, Atoa, Iwaki, Iwase, Suwa et Sado en empiétant sur celles de Kawachi, Echizen, Etchū, Kazusa, Mutsu and Shinano

References

Kodama. (1958). 図日本文化史大系 (Zusetsu Nihon bunkashi taikei). Tokyo: Shōgakkan. OCLC 16308019

Other websites

Media related to Iwase Province at Wikimedia Commons

Murdoch's map of provinces, 1903

Former provinces of Japan (List)

Kinai	Izumi Kawachi Settsu Yamashiro Yamato Yoshino 716-738

Tōkaidō	Awa Hitachi Iga Ise Izu Kai Kazusa Mikawa Musashi Owari Sagami Shima Shimōsa Suruga Tōtōmi

Tōsandō	Dewa -1869 Hida Iwaki 718-724 Iwaki 1869- Iwase 718-724 Iwashiro 1869- Kōzuke Mino Ōmi Mutsu -1869 Rikuō (or Mutsu) 1869- Rikuchū 1869- Rikuzen 1869- Shimotsuke Shinano Suwa 721-731 Ugo 1869- Uzen 1869-

Hokurikudō	Echigo Echizen Etchū Kaga Noto Sado Wakasa

San'indō	Hōki Inaba Izumo Iwami Oki Tajima Tanba Tango

San'yōdō	Aki Bingo Bitchū Bizen Harima Mimasaka Nagato Suō

Nankaidō	Awa Awaji Iyo Kii Sanuki Tosa

Saikaidō	Bungo Buzen Chikugo Chikuzen Higo Hizen Hyūga Iki Ōsumi Satsuma Tane 702-824 Tsushima

Hokkaidō 1869-	Chishima Hidaka Iburi Ishikari Kitami Kushiro Nemuro Oshima Shiribeshi Teshio Tokachi

Pre-Taihō Code provinces	Chichibu Fusa Hi Keno Kibi Koshi Kumaso Toyo Tsukushi

Source: Nussbaum, Louis-Frédéric. (2005). "Provinces and prefectures" in Japan Encyclopedia, p. 780, p. 780, at Google Books; excerpt, "Japan's former provinces were converted into prefectures by the Meiji government ... [and] grouped, according to geographic position, into the 'five provinces of the Kinai' and 'seven circuits'."

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