Before Meiji, the district covered the entire foothills of
Mount Akagi.
History
After entering Meiji Era, the former shōgun owned lands became
Iwahana Prefecture and the former Maebashi Domain lands became Maebashi Prefecture. After the
Abolition of the han system in 1871, the entire area became
Gunma Prefecture, but due to the changes to the prefecture, the area became
Kumagaya Prefecture in 1873 and to Gunma Prefecture in 1876.
Due to the land reforms of 1878, the district was split into two with the Mount Akagi is being the borderline, the northern foothills of Mount Akagi became
Kitaseta District while the southern foothills became
Minamiseta District. Since the area of Kitaseta District was too small, the district merged into
Tone District in 1896. At the same time, Minamiseta District merged with
Higashigunma District to recreate Seta District.
Timeline
Seta District(~1878)
July 22, 1878 - Due to land reforms, Seta District split into Kitaseta and Minamiseta Districts.
Seta District(1896~2009)
April 1, 1896 - The district was formed when Higashigunma and Minamiseta Districts merged. (17 villages)
May 24, 1899 - The village of Ōgo was elevated to town status to become the
town of Ōgo. (1 town, 16 villages)
April 1, 1901 - Parts of the village of Kamikawabuchi was merged into the
city of Maebashi.
April 1, 1951 - Parts of Mitsumata, village of Kaigaya, was merged into the city of Maebashi.
April 1, 1954 - The villages of Kamikawabuchi, Shimokawabuchi, Haga, and Kaigaya were merged into the city of Maebashi. (1 town, 12 villages)
September 1, 1954 - The village of Nankitsu was merged into the city of Maebashi. (1 town, 11 villages)
April 1, 1955 - Parts of the village of Kise was merged into the city of Maebashi.
September 1, 1956 - The villages of Yokono and Shikishima were merged to create the
village of Akagi. (1 town, 10 villages)
February 20, 1957 - The villages of Kise and Arato were merged to create the
village of Jōnan. (1 town, 9 villages)