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
Yin Yang Style origin of this style occurred when the Chinese ancestors combined the "Book of Changes" (易经) with the Yin Yang truth. Following the Eight Trigrams, they observed the actions of animals and environmental changes. Tian family's Yin Yang Bagua Zhang was created from these observations being studied and practiced over several generation. The practice routines is divided into eight forms: Python, Lion, Tiger, Bear, Snake, Horse, Monkey and Eagle. "Ba" means eight, "Gua" means form, and "Zhang" means palm. One "Zhang" palm is divided into eight postures. Each posture is divided into three different "Cheng" movements. The total is one hundred