Historic Map of Nitta District:
1. Ōta, 2. Kuai, 3.Sawano, 4. Ojima, 5. Serada, 6. Kizaki, 7. Hosen, 8. Torinogo, 9. Godo, 10. Izushina, 11.Watauchi 12. Yabuzukahonmachi, 12.Kasakake was formerly a

rural district A rural district was a type of local government area – now superseded – established at the end of the 19th century in England, Wales Wales ( ) is a Countries of the United Kingdom, country that is part of the United Kingdom. I ...

located in

Gunma Prefecture is a landlocked Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 October 2019) and has a geographic area of . Gunma Prefecture borders Niigata Prefecture and Fuk ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. Most of the city Ōta and parts of the cities of

Midori Midori (みどり, ミドリ, , , ) is the Japanese word for "green" and may refer to: Places * Midori, Gunma * Midori-ku, Chiba * Midori-ku, Nagoya * Midori-ku, Sagamihara * Midori-ku, Saitama * Midori-ku, Yokohama People Given name * M ...

and

Isesaki is a city located in Gunma Prefecture, Japan. , the city had an estimated population of 213,303 in 91,789 households, and a population density of 1500 persons per km2. The total area of the city is . Geography Isesaki is located in the northwe ...

were formerly part of the district Nitta District was created on December 7, 1878, with the reorganization of Gunma Prefecture into districts. It included one town (Ōta) and 96 villages, which were formerly part of the ''

tenryō The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868. The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil war ...

'' holdings in

Kōzuke Province was a Provinces of Japan, province of Japan in the area of Japan that is today Gunma Prefecture. Kōzuke bordered Echigo Province, Echigo, Shinano Province, Shinano, Musashi Province, Musashi and Shimotsuke Province, Shimotsuke Provinces. Its abb ...

under the direct administration of the

Tokugawa shogunate The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868. The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil wars ...

or administered by ''

hatamoto A was a high ranking samurai in the direct service of the Tokugawa shogunate of feudal Japan. While all three of the Shōgun, shogunates in History of Japan, Japanese history had official retainers, in the two preceding ones, they were referred ...

,'' 12 villages under

Maebashi Domain 270px, Monument making location of Maebashi Castle, headquarters of Maebashi Domain was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Kōzuke Province (modern-day Gunma Prefecture), Japan. It was centered on Maeb ...

, and one village each under Tatebayshi Domain,

Okabe Domain was a Han (Japan), feudal domain under the Tokugawa shogunate of Edo period Japan, located in Musashi Province (modern-day Saitama Prefecture), Japan. It was centered on Okabe ''jin'ya'' in what is now part of the city of Fukaya, Saitama. Histo ...

(Musashi Province), and Sano Domain (Shimotsuke Province) and two villages under Nishibata Domain (Mikawa Province). With the establishment of the municipalities system on April 1, 1889, the area was organized into four towns (Ota, Kizaki, Yabuzukahon, and Ojima) and 9 villages (Kasakake, Kuai, Sawano, Torinosato, Namashina, Watauchi, Kyodo, Serada and Hosen).

History

* April 1, 1940 - The town of Ōta and the villages of Kokonoai and Sawano were merged with the village of Nirakawa (from Yamada District) to create the town of Ōta. (4 towns, 7 villages) * November 1, 1943 - The village of Torinosato was merged into the town of Ōta. (4 towns, 6 villages) * May 3, 1948 - The town of Ōta was elevated to city status. (3 towns, 6 villages) * September 30, 1956 - The town of Kizaki and the villages of Namashima and Watauchi were merged to create the town of Nitta. (3 towns, 4 villages) * April 1, 1957 - The village of Kyodo was merged into the city of Ota. (3 towns, 3 villages) * November 1, 1957 - The village of Serada had split and was merged into the town of

Sakai is a city located in Osaka Prefecture, Japan. It has been one of the largest and most important seaports of Japan since the medieval era. Sakai is known for its '' kofun'', keyhole-shaped burial mounds dating from the fifth century. The ''kofun ...

(in Sawa District, now the city of

) and the town of Ojima, respectively. (3 towns, 2 villages) * April 1, 1963 - The village of Hosen was merged into the city of Ōta. (3 towns, 1 village) * April 1, 1990 - The village of Kasakake was elevated to town status. (4 towns) * March 28, 2005 - The towns of Nitta, Ojima and Yabuzukahon were merged into the expanded city of Ōta. (1 town) * March 27, 2006 - The town of Kasakake was merged with the town of Ōmama (from Yamada District), and the village of Azuma (from Seta District) to create the city of

. Nitta District was dissolved as a result of this merger. left, Map showing location of Nitta District within Gunma Prefecture

References

{{Authority control Former districts of Gunma Prefecture