Kurata was merged with the village of Ubuchi from Usui District to create the town of Kurabuchi. March 1, 1955 - The village of Kuruma was merged into the town of Haruna. (4 towns, 12 villages) April 1, 1955 (4 towns, 9 villages) The town of Minowa and the village of Kurumasato were merged to form the town of Misato. The towns of Tsutsumigaoka and Kaneko, and the village of Kokufu were merged to form the town of Gunma. August 1, 1955 - The village of Nagano was merged into the city of Takasaki. (4 towns, 8 villages) September 30, 1956 (4 towns, 6 villages) The village of Orui wasmerged into the city of Takaoka. The villages of Takigawa and Kyogashima were merged to form the village of Gunnan. March 30, 1957 - Parts of the village of Souma was merged with the village of Momoi (from Kitagunma District) to create the village of Momoi (in Kitagunma District). The remaining parts of the village was merged into the village of Minowa. (4 towns, 5 villages) April 1, 1957 - The village of Kamisato had split and was merged each into the towns of Minowa and Gunma (respectively). (4 towns, 3 villages) August 1, 1957 (4 towns, 2 villages) Part of the village of Gunnan was merged with the town of Tamamura and the village of Joyo (from Sawa District) to create the town of Tamamura (in Sawa District). The villages of Iwahana had split and was merged each into the village of Gunnan and the city of Takasaki (respectively). October 15, 1957 - Parts of the village of Gunnan (the locality of Sakai) was merged into the town of Tamamura (in Sawa District). March 31, 1963 - The town of Kuragano was merged into the city of Takasaki (3 towns, 2 villages) September 1, 1965 - The village of Gunnan was merged into the city of Takasaki. (3 towns, 1 village) July 1, 1996 - The village of Kurabuchi renames (倉淵村->倉渕村) January 23, 2006 - The towns of Gunma, Kurabuchi, and Misato were merged into the expanded city of Takasaki. (1 town) October 1, 2006 - The town of Haruna was merged into the expanded city of Takasaki. Gunma District was dissolved as a result of this merger. District Gunma Former districts of Gunma Prefecture