[Analysis of the time recorded in Canggongzhuan].

Shiji·Bianquecanggong Liezhuan is the first biography in official history. The doctor of the Western Han dynasty-Chunyu Yi, recorded in Canggongzhuan, was an actual historical figure. Recordings about his time of life, social background and medical stories were full and accurate. But the time of events recorded in that book was inaccurate. After analysis of related material, it transpired that Chun Yuyi was put into jail in the 13(th) year of the Emperor Hanwen Period, not the 4(th) year, and he answered the questions of the Emperor Hanwen in the 13(rd) ∼ 14(th) year when he was 39 ∼ 40 years old.