Taijitu seen in Tripilja culture in Ukraine, displayed in the Ukraine pavilion at the Expo 2010 in Shanghai, China. Also, the interlocking design is found in artifacts of the European Iron Age. While this design appears to become a standard ornamental motif in Iron-Age Celtic culture by the 3rd century BC, found on a wide variety of artifacts, it is not clear what symbolic value was attached to it. Unlike the Chinese symbol, the Celtic yin-yang lack the element of mutual penetration, and the two halves are not always portrayed in different colors. Comparable designs are also found in Etruscan art.
Taoism principle, seen in all forms change and difference such as the annual season cycles, the landscape, sexual coupling, the formation of both men and women as characters, and sociopolitical history. While almost all Taoist organizations make use of it, one could also regard it as Confucian, Neo-Confucian or pan-Chinese. One can see this symbol as a decorative element on Taoist organization flags and logos, temple floors, or stitched into clerical robes. According to Song dynasty sources, it originated around the 10th century CE. Previously, a tiger and a dragon had symbolized yin and yang. Taoist temples may fly square or