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 and establishing Northern Qi. Emperor Wenxuan made Yang Yin his prime minister and created him the Duke of Huashan, and during Emperor Wenxuan's reign, Yang served capably, finding appropriate officials for the key posts. Therefore, although Emperor Wenxuan, particularly late in his reign, turned violent and wasteful, the imperial government nevertheless functioned effectively. Yang was praised for remembering those who had helped him in the past, repaying them greatly, but not bearing grudges against those who had tried to hurt him. With Emperor Wenxuan, in his late years, accustomed to killing people for entertainment while he was drunk, Yang thought