true Three Lao Tzus The main source of information on Lao Tzu's life is a biography written by the historian Ssu-ma Ch'ien (145–86 B.C.E. ) in his Records of the Historian. By this time a number of traditions or beliefs about the founder of Chinese Lao Tzu. Taoism were going around, and Ssu-ma Ch'ien himself was unsure of their authenticity.
