Zhongjing Zhang

Zhang Zhongjing (Chinese: 張仲景; 150–219), formal name Zhang Ji (張機), was a Chinese pharmacologist, physician, inventor, and writer of the Eastern Han dynasty and one of the most eminent Chinese physicians during the later years of the Han dynasty. He established medication principles and summed up the medicinal experience until that time, thus making a considerable contribution to the development of Traditional Chinese Medicine.