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 ceremony where Gao Yan was to be named to a ceremonial post. Yang, Kezhuhun, Yan, Zheng, and Song Qindao were all severely battered and captured. Gao Yan and Gao Zhan subsequently entered the palace and accused Yang and his associates of crimes. They were all executed, although Grand Empress Dowager Lou, who was otherwise supportive of her son Gao Yan's actions, personally attended Yang's wake and made the comment, "Lord Yang was faithful and suffered for his faithfulness." 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