Sima Guang

Sima Guang was commissioned by Emperor Yingzong of Song to compile a comprehensive history of China. He began work on the Zizhi Tongjian, a chronological record from 403 BCE to 959 CE, intended to provide rulers with historical lessons for governance.

After 19 years of work, Sima Guang completed the Zizhi Tongjian in 1084. The 294-volume work covered 1,362 years of Chinese history, using critical analysis of sources. It became the standard model for later Chinese historical writing and remains a key reference.

Upon the accession of Emperor Zhezong, Sima Guang became Grand Chancellor and led the conservative faction opposing Wang Anshi's New Policies. He repealed many reforms, including the Green Shoots and Hired Service laws, arguing they harmed the peasantry and state stability.