Before unification by the Qin Dynasty in 221 BC, "China" did not exist as a coherent entity. The Chinese civilization consisted of a patchwork of several states, each ruled by a king (王), duke (公), marquess (侯), or earl (伯). Although there was a central king who held nominal power, and powerful hegemons sometimes held considerable influence, each state was ruled as an independent political entity. This is also the time of the beginnings of Confucian philosophy and that of many other philosophies that greatly influ ...

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