After the Western Han Dynasty,Huang-Lao theory again became the mainstream trend of thought in the Northern Song Dynasty,constituting another peak in the history of its development. Most emperors of the Northern Song advocated Huang-Lao theory,which was carried out jointly by the monarchs and their subjects,and the ideological circles echoed each other. Huang-Lao theory was influential throughout the Northern Song period,especially during the reign of Emperor Renzong, the most representative emperor-worshiper whose rule was hailed as the Rule of Peace by his contemporaries and later generation...