villages) April 15, 1937 - The village of Minamigyotoku was elevated to town status. (11 towns, 20 villages) April 1, 1938 - The village of Yabashira was merged into the town of Matsudo. (11 towns, 19 villages) April 1, 1943 - The town of Matsudo, and the villages of Mabashi and Takagi were merged to create the city of Matsudo. (10 towns, 17 villages) November 3, 1949 - The village of Ogashiwa was merged into the city of Ichikawa. (10 towns, 16 villages) May 3, 1950 - The town of Noda, and the villages of Asahi, Shichifuku, and Umesato were merged to create the city of Noda. (9 towns, 13 villages) April 1, 1951 - The town of Nagareyama, and the villages of Yagi and Shinkawa were merged to creare the town of Edogawa. (9 towns, 11 villages) January 1, 1952 - The town of Edogawa was renamed to Nagareyama. September 1, 1954 - The towns of Kogane and Kashiwa, and the villages of Tuchi and Tanaka were merged to create the city of Tokatsu. (7 towns, 9 villages) November 1, 1954 - The village of Tomise broke off and some of its localities were merged into the town of Abiko and the city of Tokatsu (respectively). (7 towns, 8 villages) March 30, 1955 - The villages of Kazahaya and Tega were merged to create the village of Shōnan. (7 towns, 7 villages) March 31, 1955 - The town of Gyotoku was merged into the city of Ichikawa. (6 towns, 7 villages) April 29, 1955 - The towns of Abiko and Fusa, and the village of Kohoku were merged to create the town of Abiko. (5 towns, 6 villages) July 20, 1955 - The town of Sekiyado, and the villages of Kimagase and Futakawa were merged to create the town of Sekido. (5 towns, 4 villages) October 1, 1956 - The town of Minamigyotoku was merged into the city of Ichikawa. (4 towns, 4 villages) April 1, 1957 - The villages of Fukuda and Kawama were merged into the city of Noba (4 towns, 2 villages) August 1, 1958 - The village of Kamagaya was elevated to town status. (5 towns, 1 village) February 1, 1964 - The village of Shōnan was elevated to town status. (6 towns) January 1, 1967 - The town of Nagareyama was elevated to city status. (5 towns) July 1, 1970 - The town of