Being emperor of China was one of the toughest jobs in the world. The Chinese believed that an emperor's right to rule was bestowed by heaven. If the emperor failed to govern responsibly or mistreated the people, his right to rule—the "Mandate of Heaven"—could be withdrawn. Natural disasters such as floods or famines could also be seen as evidence that the emperor had lost the support of heaven—and should be overthrown. Ask you students to imagine that they have gone back in time, and are a Chinese emperor. How would they run their empire? Play the quiz with your students and see which famous emperor they would have been.