Taijitu during the Qing period for their possible connection with Zhou Dunyi's "taijitu". Ming period author Lai Zhide (1525–1604) simplified the "taijitu" to a design of two interlocking spirals. In the Ming era, the combination of the two interlocking spirals of the "taijitu" with two black-and-white dots superimposed on them became identified with the "He tu" or "Yellow River diagram" (河圖). This version was reported in Western literature of the late 19th century as the "Great Monad", and has been widely popularised in Western popular culture as the "yin-yang symbol" since the 1960s. The contemporary Chinese term for the modern symbol
Yin and yang dark principle), hence men are afforded rulership positions whereas women are not unless, under some remarkable circumstances, they possess sufficient yang. The notion of yin and yang has led to the persecution and extinction of Asian sun goddess cults outside of Korea and Japan. In Daoist philosophy, dark and light, yin and yang, arrive in the Tao Te Ching at chapter 42. It becomes sensible from an initial quiescence or emptiness (wuji, sometimes symbolized by an empty circle), and continues moving until is reached again. For instance, dropping a stone in a calm pool of water will simultaneously raise waves