When a town or village of the same name existed within the same county, the central government had the town or village to rename to avoid overlapping during which the mergers of municipalities were made in the Meiji period; yet the same names were left as they were when they existed in the different counties.
明治時代に市町村を統合した時には、同じ郡の中に同じ名の町村がある場合には重複しないように改名させたが、違う郡ならそのままにした。