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Lü Buwei (291–235 BCE) was a Chinese merchant and politician of the Qin state during the Warring States period. Originally an influential merchant from the Wey state, Lü Buwei met and befriended King Zhuangxiang of Qin, who was then a minor prince serving as a hostage in the Zhao state. Through bribes and machinations, Lü Buwei succeeded in helping King Zhuangxiang become the heir apparent to the Qin throne. Wikipedia