Since Pangu split the heavens and earth, the Primordial World has endured nine Calamities. During the ninth, it shattered and became the Myriad Worlds.
The Dao Ancestor Hongjun, Taiqing Taishang, Yuqing Yuanshi, Shangqing Tongtian, Donghuang Taiyi, Empress Wa Nuwa, and other mighty beings all contended for the opportunity to attain the Great Dao.