The Yellow Emperor was originally the leader of a tribal alliance in the Yellow River basin, living about 4000 years ago. After the Yellow Emperor, the outstanding leaders of the tribal alliances in the Yellow River basin were Yao (yáo), Shun (shùn), and Yu (yǔ). During that time, the tribal alliance leaders were selected based on recommendations. When Yao grew old, he convened a tribal alliance meeting, where everyone recommended a virtuous and talented...