In ancient books, the monarch of Xia was called Hou, Zhou, Zhou, and some were called emperors. From Kai to, there was a biography of 13 generations 16, which lasted 472 years (say 432 years). For example, from the beginning of the Xia Dynasty, from Yu to (Jie), * * * fourteen generations and seventeen kings, it took more than 400 years.
1, Kai -2, Taikang -3, Zhongkang -4, Xiang -5, Shaokang -6, Yu -7, Sophora japonica (powder) -8, Mang (yellow) -9, Xie (stone)-10.