The Qin dynasty unified the world, but unfortunately the country was short, two died, and the people did not agree with it because of the brutal rule. The Western Han Dynasty was the first unified dynasty ruled for a long time. Since Liu Bang entered the customs, China has entered its heyday, and the Chinese people's recognition of the Han Dynasty is still very high. Although Chen Sheng and Guangwu put forward the slogan of "princes will have seeds", people who have not experienced too many regime changes will not have the idea that everyone in later generations wants to be emperor.
Liu bang won the world under the slogan "governors must be good" He and his descendants certainly don't want others to follow suit. Emperor Wu of the Han Dynasty accepted Dong Zhongshu's theoretical system of "the unity of heaven and man" and "the divine right of monarchy" while "ousting a hundred schools of thought and respecting Confucianism alone". The "feeling between heaven and man" politically demonstrated the legitimacy and rationality of absolute monarchy and established the authority of the emperor. Through the promotion of Emperor Wu, "the feeling between heaven and man" became the ruling thought and was recognized by the literati class.
Therefore, if you want to be an emperor, you must belong to the destiny. When Wang Mang usurped the Han Dynasty, he put forward the saying that "the virtue of Han Dynasty has declined, and the new sage will prosper", and then ordered people to make all kinds of auguries in various places and pretend to be new saints. And according to Zou Yan's "General Theory of Five Virtues", people made a bronze room under the guise of Emperor Gaozu's legacy, which contained a book "Chi Di sealed the Yellow Emperor Jin Ce". Red stands for fire, yellow stands for soil, and fire is born in soil. You are the virtue of soil, indicating the legitimacy of your regime.
After Wang Mang established the "new" dynasty, a series of untimely reforms made his regime quickly fall apart. People naturally think that the fate of the Han Dynasty is still there, and they have elected Liu's descendants as kings. Even Wang Lang, who had nothing to do with the Liu family, recruited soldiers under the banner of Emperor Wu's own son, and a large number of troops came to follow, and suddenly caught up with Liu Xiu. As an authentic Han clan, Liu Xiu doesn't need this ready-made orthodox banner. Why did he start a new stove?
Liu Biao, Emperor Gaozu of Han Dynasty, was given the same surname as Wang, and Emperor Wudi of Han Dynasty also carried out the "favor decree". Han is very powerful all over the world, and there are many Han in the imperial court. Coupled with powerful forces, it also recognized the principle of "either Liu or Wang". When the world was in chaos, the grain and grass in Guanzhong area were hidden in the hands of aristocratic families. After Liu Xuan, the first emperor, was set up by the outlaw hero and invaded Chang 'an, the powerful family took out the grain in their hands, so that the renewed regime could exist smoothly in Chang 'an.
Liu Xuan was elected as the leader by the general of the outlaw hero because he was incompetent. After the establishment of the regime, I just wanted to enjoy myself under the circumstance of being surrounded by strong enemies. Soon, I was attacked by the Red Eyebrow Army in Chang 'an, and the new regime perished. The Red Eyebrow Army that occupied Chang 'an was not led by Liu's descendants. Although Fan Chong, the leader of the Red Eyebrow Army, introduced Liu Penzi, the Han clan who was plundered on the road, he was not recognized by the Han clan and the powerful people in Guanzhong. Unable to raise grain and grow grass in Chang 'an area, we had to lead the army home. On the way, he was ambushed by Liu Xiu, and the Red Eyebrow Army was routed.
The brand of Han clan and descendants of Liu was still very useful at that time. Liu's descendants are considered orthodox and self-reliant. Starting a new stove will get twice the result with half the effort.