China first implemented the "Kyushu" system and the "Twelve States" system. The Geography of Hanshu said that in the era of the Yellow Emperor in primitive society, "painting wild states" had begun, and there was a state every 10,000 square miles; Yao is divided into twelve states in the world, and Dayu is divided into Kyushu after water control. The name of Kyushu is recorded in Shangshu Gong Yu. They are Ji, Zhou, Qing, Xu, Yang, Jing, Yu, Liang and Yong. The names of Kyushu recorded in other ancient books are slightly different from those of Gong Yu. The theory of twelve States was first seen in Historical Records Yao Dian.
There is a list of states. Therefore, the word "Kyushu" had a greater influence than "Twelve States", and later Kyushu became another name for China.