From the Dai states of the Shang and Zhou dynasties,through the Dai counties of the Zhao and Qin dynasties,as well as mul-tiple Dai states of the Han and Northern dynasties,to the Dai states of the Sui dynasty,with several migrations of Yanmen County,Dai states,Dai counties,and Yanmen County underwent multiple changes in social unrest.The changes in land substitution not only indicate changes in political structure and ethnic relations,but also imply differences in strategic posture and administrative divisions,and"sub-stitution"also has different connotations.The final positioning of Daizhou and the final improvement of the city also went through a long process.
NETL
NSTL
万方数据
