The world under heaven, after a long period of division, tends to unite; after a long period of union, tends to divide. This has been so since antiquity. When the rule of the Zhou Dynasty weakened, seven contending kingdoms sprang up, warring one with another until the kingdom of Qin prevailed and possessed the empire. But when Qin's destiny had been fulfilled, arose two opposing kingdoms, Chu and Han, to fight for the mastery. And Han was the victor.

The rise of the fortunes of Han began when Liu Bang the Supreme Ancestor slew a white serpent to raise the banners of uprising, which only ended when the whole empire belonged to Han (BC 202). This magnificent heritage was handed down in successive Han emperors for two hundred years, till the rebellion of Wang Mang caused a disruption. But soon Liu Xiu the Latter Han Founder restored the empire, and Han emperors continued their rule for another two hundred years till the days of Emperor Xian, which were doomed to see the beginning of the empire's division into three parts, known to history as The Three Kingdoms.