Abstract
The purposes of this paper are twofold. Firstly, it seeks to investigate the relationship between Yi Luo Yuan Yuan Lu (The Sources and Origins of the Rivers Yi and Luo) and Song Shi Dao Xue Zhuan (the chapters on Neo-Confucianism in The History of the Song Dynasty). Secondly, this paper attempts to examine the differences between the academic histories constructed by the two bodies. To achieve the first purpose, it has to review the discourses that held a close relationship between the two bodies and identifies their origins carefully. To fulfill the second purpose, it applies a set of four criteria for comparing the different trajectories of academic history charted by two bodies.