 The city expanded further on April 1, 1954 by annexing the villages of Kamikawabuchi, Shimokawabuchi, Azuma, Minamitachibana, Kaigaya, Haga, Motosōja, and Sōja from Seta District, followed by a portion of Jōnan village in 1957.On April 1, 1960 a portion of Tamamura Town and another portion of Jōnan village were merged into Maebashi, which finally anned the remainder of Jōnan village in 1967.Maebashi hosted the 1999 IAAF World Indoor Championships.