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.
Tai chi single ultimate, represented by the "taijitu" symbol . Tàijíquán theory and practice evolved in agreement with many Chinese philosophical principles, including those of Taoism and Confucianism. Tàijíquán training involves five elements, "taolu" (solo hand and weapons routines/forms), "neigong" and "qigong" (breathing, movement and awareness exercises and meditation), "tuishou" (response drills) and "sanshou" (self defence techniques). While tàijíquán is typified by some for its slow movements, many styles (including the three most popular: Yang, Wu and Chen) have secondary forms with faster pace. Some traditional schools teach partner exercises known as "tuishou" ("pushing hands"), and martial applications of the postures of