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Kaisei (海西郡, Kaisei-gun) (a.k.a. West Ama) was a district located in Aichi Prefecture, Japan.
![](http://upload.wikimedia.org/wikipedia/commons/2/22/Aichi_Kaisai-gun.png)
* yellow - areas formerly within the district borders during the early Meiji period
![](http://upload.wikimedia.org/wikipedia/commons/5/5c/Aichi_Ama-gun_1889.png)
History
editDistrict Timeline
edit- 1913 - Kaisei and Kaitō Districts were merged to form Ama District. Therefore, both Kaisei and Kaitō Districts were dissolved as a result of this merger.
See also
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