In the Jin Dynasty (the Spring and Autumn period), the local area became called Daibu, which was then followed by other districts, leading to the centralized county and prefecture system.
晋(春秋)では地方の県のことを大夫と呼ぶようになり、後に諸国もこれに倣い、中央集権的な郡県制へと移行することになる。