Yamada District, Gunma
Yamada District was created on December 7, 1878, with the reorganization of Gunma Prefecture into districts. It included 60 villages, which were formerly part of the "tenryō" holdings in Kōzuke Province under the direct administration of the Tokugawa shogunate, one town (Kiryu-shinmachi) and one village under the Matsuyama sub-domain of Shōnai Domain in Dewa Province and one village controlled by Jōzai Domain in Kazusa Province. With the establishment of the municipalities system on April 1, 1889, the area was organized into two towns (Kiyru and Ōmama) and eight villages.