Map showing capital sites of the Three Dynasties and the distribution of ancient copper and tin mines

~As we have noted in the previous chapter, the period of the Lung-shan and Lung-shan-like cultures in Chinese prehistory, from approximately 3000 to 2000 B.C., was a period of significant transformation in several areas of Chinese society: there was increasing differentiation among the populace in economic wealth and political power, the role of ritual became...