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 Xiaoming, Northern Wei was suffering greatly from agrarian rebellions, and Yang Jing was commissioned with an army as the governor of Ding Province, roughly modern Baoding, Hebei). Yang Yin accompanied his father to Ding Province, and on account of his contribution to his father's campaign, was created the Baron of Weichang. However, in spring 528, Ding Province fell to the rebel general Du Luozhou, and Yang Jing's household was imprisoned by Du. Soon thereafter, Du was defeated by another rebel general, Ge Rong. Ge wanted to marry one of his daughters to Yang Yin and make him an official, but