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.
Yang Yin Yang Yin Yang Yin (楊愔) (511–560), courtesy name Zhunyan (遵彦), nickname Qinwang (秦王), was a high-level official of the Chinese dynasty Northern Qi. Yang Yin came from a clan that produced many officials of Northern Wei. His father was Yang Jin, and his mother was Yang Jin's wife Lady Yuan, who came from a noble lineage herself, being the granddaughter of the famed official Yuan He. In his youth, he studied the histories, the "Shi Jing", and the "I Ching", but particularly favored the "Zuo Zhuan" version of the "Spring and Autumn Annals". In 526, during the reign of Emperor