Iwase Province

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Iwase (石背国 ; -no kuni) is an old province of Japan lasting for a brief period of time in Nara period in what is now western Fukushima prefecture

Yōrō Ritsuryo established the Iwase province in 718 through the division of the Michinoku (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). It returned to Michinoku some time between 722 and 724.

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