.Beginning,Growth and Present State of TCM <<Shen Nong Ben Cao Jing>> Time:Han dynasty Writer:Most of Doctors ■ Contents 365 kinds of drugs Feature:It is the earliest extant Classic On material medical handed down from that time.二.Beginning, Growth and Present State of TCM ◼ <<Shen Nong Ben Cao Jing>> ◼ Time: Han dynasty ◼ Writer: Most of Doctors ◼ Contents : 365 kinds of drugs ◼ Feature: It is the earliest extant Classic On material medical handed down from that time