On March 20, 2005 - the former town of Ukiha absorbed the town of Yoshii (both from Ukiha District) to create the city of Ukiha. Ukiha District was dissolved as a result of this merger.
On February 1, 2010 - the towns of Kurogi and Tachibana, and the villages of Hoshino and Yabe (both from Yame District) were merged into the expanded city of Yame. One municipality was left in Yame District.[1]