Qinghai has been influenced by the interactions between Mongol and Tibetan culture, north to south, and Han Chinese and Inner Asia Muslim culture, east to west. The languages of Qinghai have for centuries formed a Sprachbund, with Zhongyuan Mandarin, Amdo Tibetan, Salar, Yugur, and Monguor borrowing from and influencing one another. In mainstream Chinese culture, Qinghai is most associated with the Tale of King Mu, Son of Heaven. According to this legend, King Mu of Zhou (r. 976-922 BCE) pursued hostile Quanrong nomads to eastern Qinghai, where the goddess Xi Wangmu threw the king a banquet in the Kunlun Mountains.