Taijitu the Tibetan designs have three or four swirls (representing the Three Jewels or the Four Noble Truths, i.e. as a triskele and a tetraskelion design), Lai Zhide's taijitu has two swirls, terminating in a central circle. The Ming-era design of the taijitu of two interlocking spirals has been reported as "yin-yang symbol" in the first half of the 20th century. The flag of South Korea, originally introduced as the flag of Joseon era Korea in 1882, shows this symbol in red and blue. This was a modernisation of the older (early 19th century) form of the Bat Quai Do used
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