Iwai Prefecture

...Furthermore, Kurihara Prefecture was partly incorporated into Tome Prefecture, and then merged with Isawa Prefecture, but the following year Tome Prefecture annexed the former Kurihara Prefecture area and Ishinomaki Prefecture. In 1871, the Sendai Domain became a prefecture, and at the end of the same year, it annexed Kakuta and Tome Prefectures, and at that time, Tamazukuri County and three other counties in the northern part of Tome Prefecture were transferred to Ichinoseki Prefecture (later renamed Mizusawa Prefecture and Iwai Prefecture). In 1872, Sendai Prefecture was renamed Miyagi Prefecture, and Tamazukuri County was incorporated from Mizusawa Prefecture, and in 1875 it was transferred again to Iwai Prefecture, but the following year, 1876, all four counties were reincorporated. ...

*Some of the terminology that refers to "Iwai Prefecture" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…さらに栗原県は登米県に一部を編入したのち胆沢（いさわ）県に合併したが，翌年登米県は旧栗原県域と石巻県を併合した。71年の廃藩置県により仙台藩は県となり，同年末，角田･登米両県を併合，その際登米県北部の玉造郡ほか3郡を一関県(のち水沢県，磐井県と改称)に移管した。72年仙台県は宮城県と改称し，水沢県から玉造郡を編入，75年再び磐井県に移管したものの，翌76年4郡ともに再編入した。…

※「磐井県」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報