Emperor, the title of the supreme ruler in ancient times. In China, emperor was first a combined title of Huang and Di. "The emperor is also big, which means that he is brilliant and full of beauty. The emperor, virtue like heaven and earth, said it can walk the way of heaven, initiative and judgment." And the Spring and Autumn Annals: "Those whose virtues are like those of heaven and earth are called emperors." So people consider the ancient times of the wise ruler, according to their respective achievements, will be worthy of the emperor, emperor of the eight people collectively referred to as the "three emperors and five emperors". However, at this time, the emperor and the emperor were still two separate titles, not used for one person at the same time. The first time the two were combined and became the title of the supreme ruler of the country began with Emperor Qin Shi Huang. Since then, the word "emperor" has officially become the title of the supreme ruler of China's feudal dynasties. In recent times, "emperor" has also been used as a translation for the rulers of other powerful empires.