During the
Edo period, the area was part of the
Morioka han feudal domain of the
Nanbu clan, with portions belonging to
Hachinohe Domain and
Shichinohe Domain. The Nanbu clan sided with the
Ōuetsu Reppan Dōmei during the
Boshin War of the
Meiji Restoration and were punished by the new
Meiji government by loss of their northern territories. In November 1869, large portions of Kita-gun (
Shimokita and
Kamikita) and Sannohe District became part of the newly created , a 30,000
koku holding created to resettle the dispossessed
Matsudaira clan from
Aizu-Wakamatsu. In July 1871, with the
abolition of the han system, Tonami Domain became Tonami Prefecture, and was merged into the newly created Aomori Prefecture in September 1871. During the early
Meiji period cadastral reform of April 1, 1889, the district was reorganized into two towns and 31 villages.
District Timeline District Background Recent mergers • On July 1, 2004 - The village of
Kuraishi was merged into the expanded town of
Gonohe. • On March 31, 2005 - The village of
Nangō was merged into the expanded city of
Hachinohe. • On January 1, 2006 - The town of
Nagawa and the village of
Fukuchi were merged into the expanded town of
Nanbu. ==References==