Taijitu Taijitu A taijitu () is a symbol or diagram ( "tú") in Chinese philosophy representing Taiji ( "tàijí" "great pole" or "supreme ultimate") representing both its monist ("wuji") and its dualist (yin and yang) aspects. Such a diagram was first introduced by Song Dynasty philosopher Zhou Dunyi (周敦頤 1017–1073) in his "Taijitu shuo" 太極圖說. The modern Taoist canon, compiled during the Ming era, has at least half a dozen variants of such "taijitu". The two most similar are the "Taiji Primal Heaven" (太極先天圖 "tàijí xiāntiān tú") and the "wuji" (無極圖 "wújí tú") diagrams, both of which have been extensively studied
Taoism in which Taoism continues to be an "order" of the larger body of Chinese religion. Laozi is traditionally regarded as one of the founders of Taoism and is closely associated in this context with "original" or "primordial" Taoism. Whether he actually existed is disputed; however, the work attributed to him—the "Tao Te Ching"—is dated to the late 4th century BCE. Taoism draws its cosmological foundations from the School of Naturalists (in the form of its main elements—yin and yang and the Five Phases), which developed during the Warring States period (4th to 3rd centuries BC). Robinet identifies four components in