夏代前有个联邦制王朝许顺湛我在《夏王朝前夕的社会形态》①一文中曾明确提出：第一，尧舜时代与龙山文化相对应；第二，大量的考古资料证明，尧舜时代阶级压迫已经出现；第三，部落联盟首领已经变质，尧舜禹的政权交替，不是禅让，而是用武力夺得的天下；第四，据文献记... There was a federal dynasty before the Xia dynasty Xu Shunzhan I “in the eve of the Xia dynasty, the social form of” ① article has made it clear: First, the era of Yao and Shun and Longshan culture corresponds; second, a large number of archaeological evidence that the era of Yao and Shun oppression has been Third, tribal alliances have been degenerate headcount, the regime of Yao, Shun and Yu alternate, not Zen Buddhism, but the world won by force; fourth, according to the literature ...