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rural district A rural district was a type of local government area – now superseded – established at the end of the 19th century in England, Wales Wales ( ) is a Countries of the United Kingdom, country that is part of the United Kingdom.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

. As of January 2015, the district had an estimated population of 103,895 and an area of 132.37 km², with a population density of 785 people per square kilometer.

Towns and villages

* Chiyoda *

Itakura is a List of towns in Japan, town located in Gunma Prefecture, Japan. , the town had an estimated population of 14,323 in 5717 households and a population density of 340 persons per km2. The total area of the town is . Itakura's animal mascot ...

Meiwa was a after '' Hōreki'' and before ''An'ei.'' This period spanned the years from June 1764 through November 1772. The reigning empress and emperor were and . Change of era * 1764 : The era name became ''Meiwa'' (meaning "Bright Harmony") be ...

* Ōizumi * Ōra The entire city of Tatebayashi was formerly part of the district.

History

The area of Ōra District was formerly part of

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 ...

. Per a census conducted at the end of the

Edo period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

, the area was divided into 39 villages administered as ''

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 ...

'' directly by 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 ...

, one town (Tatebayashi), 40 villages under the control of

Tatebayashi Domain was a Han (Japan), feudal domain under the Tokugawa shogunate of Edo period Japan, located in Kōzuke Province (modern-day Gunma Prefecture), Japan. It was centered on Tatebayashi Castle in what is now the city of Tatebayashi, Gunma. History Fol ...

, and one village 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 ...

. Eight villages were under the joint control of the Shogunate and Maebashi Domain, and three villages were under the joint control of the Shogunate and Tatebayashi Domain. One remaining village was under the joint control of the Shogunate and Nishibata Domain in

Mikawa Province was an Provinces of Japan, old province in the area that today forms the eastern half of Aichi Prefecture.Louis-Frédéric, Nussbaum, Louis-Frédéric. (2005). "''Mikawa''" in . Its abbreviated form name was . Mikawa bordered on Owari Province, O ...

. file: Gumma Ora-gun 1889.png , Historic Map of Ōra District in 1889:

1. Tatebayashi, 2. Satoya, 3. Ōshima, 4. Nishiyada, 5. Ebise, 6. Ōgano, 7. Inara, 8. Akabane, 9. Chieda, 10. Umeshima, 11.Sanuki, 12. Rokugō, 13. Minoya, 14. Tominaga, 15. Eiraku, 16. Ōkawa, 17. Koizumi, 18. Takashima, 19. Nakano, 20. Nagae, 21. Tatara 22. Watase *April 1, 1889 – With the establishment of the municipalities system, the town of Tatebayshi and 21 villages were formed. (1 town, 21 villages) *July 25, 1902 - The village of Koizumi gained town status. (2 towns, 20 villages) *1916 - Population: 83,319.

Malaria Malaria is a Mosquito-borne disease, mosquito-borne infectious disease that affects vertebrates and ''Anopheles'' mosquitoes. Human malaria causes Signs and symptoms, symptoms that typically include fever, Fatigue (medical), fatigue, vomitin ...

Patients: 3,609. *April 1, 1954 - The town of Tatebayashi and the villages of Satoya, Ōshima, Akabane, Rokugō, Minoya, Tatara, and Watarase merged to form the city Tatebayashi. (1 town, 13 villages) *February 1, 1955 - The villages of Nishiyada, Ebise, Ōgano, and Inara merged to form the town of Itakura. (2 towns, 9 villages) *March 1, 1955 (2 towns, 6 villages) **The villages of Takashima and Nakano merged to form the village of Nakashima. **The villages of Chieda, Umeshima, and Sanuki merged to form the village of Meiwa. *March 31, 1955 - The villages of Tominaga, Eiraku, and Nagae merged to form the village of Chiyoda. (2 towns, 4 villages) *September 30, 1956 - Parts of the village of Chiyoda (areas of the former village of Nagae) merged into the village of Nakashima. *January 1, 1957 - The village of Nakashima was renamed Ōra. *March 31, 1957 - The town of Koizumi and the village of Ōkawa merged to form the town of Ōizumi. (2 towns, 3 villages) *April 1, 1968 - The village of Ōra gained town status. (3 towns, 2 villages) *April 1, 1982 - The village of Chiyoda gained town status. (4 towns, 1 village) *October 1, 1998 - The village of Meiwa gained town status. (5 towns)

References

*内務省衛生局保健衛生調査室編『各地方ニ於ケル「マラリア」二関スル概況』1919年（大正8年）発行（2008年2月24日現在、国立国会図書館の『近代デジタルライブラリー』で閲覧可能） {{DEFAULTSORT:Ora District, Gunma Districts in Gunma Prefecture