On April 1, 1991 - the old city of
Kitakami absorbed the town of
Waga and the village of
Ezuriko (both from
Waga District) to create the new and expanded city of Kitakami.
On June 6, 2005 - the old city of
Miyako absorbed the town of
Tarō and village of
Niisato (both from
Shimohei District) to create the new and expanded city of Miyako.
On April 1, 1991 - the old city of
Kitakami absorbed the town of
Waga and the village of
Ezuriko (both from
Waga District) to create the new and expanded city of Kitakami.
On June 6, 2005 - the old city of
Miyako absorbed the town of
Tarō and village of
Niisato (both from
Shimohei District) to create the new and expanded city of Miyako.