Zhang Zhongjing was born in Nieyang of Nan County (nowRangdongTowninDeng County,HenanProvince; or another saying,Nanyang City,HenanProvince) of the Eastern Han Dynasty (25-220). It is said that he was once conferred an honorary title by the court and worked as the satrap ofChangsha. Zhang Zhongjing was fond of medical science since childhood,and learned medicine from Zhang Bozu in the same county when he was young. After many years of hard learning and clinical practice,he won high prestige and became an outstanding medical scientist in China. In the last years of the Eastern Han Dynasty, a prevalent pestilence claimed the lives of thousands. According to records, from the first year of the Jian'an reign (96), two thirds of people died of infectious diseases in just one decade, of which febrile diseases caused by cold accounted for 70%.