Crack the Summer Dynasty! Gu Jiegang said that the Chongguo of Cangzhi was in Songshan, but why did the Kangxi Dictionary deny it? Is the Song Mountain where Yanshi Erlitou is located the central area of the Xia Dynasty? Where is Chongbo, Chongyu, and Chongguo? Songshan is not a lofty epilogue

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