久保田藩
The area of Yamamoto District was formerly part of Dewa Province, and came under the new province of Ugo Province on January 19, 1869 following the Meiji restoration. At the time, the area consisted of 2 towns and 72 villages formerly under the control of Kubota Domain, based at Akita. The area became part of Akita Prefecture in 1871, and was organized as Yamamoto District in 1878.