Why did the Tang Dynasty survive after the Anshi Rebellion 150 years?

In the early Tang Dynasty, the foundation was good, and the building would not collapse at once. After all, hundreds of years ago, the world enjoyed the good governance of the Li family, and the country was rich and the people were safe. Sudden war may hurt its skin and make its bones and muscles difficult to move.

Even though Emperor Xuanzong of the Tang Dynasty chased all the way from Chang 'an to Sichuan, there were still many envoys and loyal ministers of our time. But after this war, warlords everywhere mushroomed, so centralization was impossible in the Tang Dynasty. There are princes with the help of the emperor outside, and eunuchs with powerful ministers inside, and the party struggles constantly.

The system and culture of the Han nationality have no popular foundation in the north, with five dynasties and ten countries, and the Song Dynasty was biased towards the Central Plains and the South. At the same time, it has also caused another cultural phenomenon, that is, the Han people are cowardly and unfit to be soldiers and county guards. In the Tang Dynasty, it was not against social custom for a father to marry the wife of a living son. However, in the social customs of the ancient nationalities I have seen, in the farming nationalities in the Central Plains, fathers cannot marry their own children and grandchildren, and children and grandchildren cannot marry their fathers' wives and concubines.

Roughly because organizations at all levels in the Tang Dynasty had the right, and local governments had money, food and people, even if Chang 'an was defeated, neighboring cities like Luoyang Datong still had strong military strength to resist, and there were abundant materials and armament support, not to mention many such cities in the country, so it was inevitable that the Tang Dynasty could not be defeated. In the Tang Dynasty, the policy of giving preferential treatment to the Hu people led to the bias of the people, and the military attache also preferred it, while the military system was.

Among the nomadic people in the north, fathers will not marry the wives of their children and grandchildren, but children and grandchildren can marry the wives of their deceased fathers, excluding their own biological mothers. This is because the wife of the deceased father is older, so it is difficult to get married again. Nomadic life requires a certain amount of physical strength, which excludes older people. Therefore, in order to take care of his dead father's wife conveniently, sons will marry his dead father's wife, which will also happen in agricultural civilization in disaster years.

And I'm not kidding. I haven't changed in three thousand years. 1840, was quickly called to the gate of Beijing. 1853, Nanjing fell, Jiangnan lost half, and another country was called Taiping Heavenly Kingdom.

1860, the capital city of Erklau fell, and the son of heaven hunted in the north. However, in this way, Qing did not die. 1864 Conquer the capital of Taiping Heavenly Kingdom and recapture Jiangnan. The good times didn't last long. 1900, we single-handedly challenged the world's eight major forces to fight a joint team battle, the capital fell, and the son of heaven once again went to the north to hunt. However, I still didn't die in the Qing Dynasty.