Why is it more difficult for Qin to unify the world than any dynasty in history?

Qin's ambition to unify the world began in 373 BC, when Lao Zi entered Qin and predicted Qin's national fortune to Qin Xiangong. In 22 1 BC, Qin unified the world, which lasted 152 years. Throughout the history of reunification, only Qin completed the great cause of reunification in 152 years. It takes the longest time to unify the world, from the six dynasties to the seven emperors, which is the first difficulty for Qin to unify the world! It took only one generation for Shang Dynasty to destroy Xia Dynasty and Zhou Dynasty to destroy Shang Dynasty, while it took only six years for Han Dynasty and Qin Dynasty. Qin used to be a vassal enfeoffment system, which could destroy the country in World War I; After the Qin Dynasty, reunification became the highest pursuit of China people, and it was much easier.

According to Qin Benji, in the eleventh year, Zhou Taishi met him and said, "Zhou left Qin, don't get back together at the age of 500, and be the overlord at the age of 17." In 384 BC, Qin Xiangong ascended the throne and became a monarch. In the eleventh year, Lao Tzu told Qin Xiangong that Qin would eventually unify the world, and predicted that the Qin and Zhou Dynasties would merge around 270 BC. In 770 BC, Qin became a vassal state of the Zhou Dynasty. In 256 BC, the Xiang of Qin conquered the Western Zhou Dynasty. Thirty-six cities in the Western Zhou Dynasty, with 30,000 people, all entered the State of Qin, and Zhou Nanwang, the son of heaven, lived in the Western Zhou Dynasty and entered the Qin Dynasty at this time. Kuai and Jun of the Western Zhou Dynasty died soon, Qin took Zhou Jiuding's treasure, and the Western Zhou Dynasty died. It actually took 5 14 years to merge Qin and Zhou dynasties.

The war that Qin unified the world was very cruel. Tian Lei killed more than one million soldiers in six countries alone, which was far more cruel than later generations. At that time, the seven chivalrous men competed for hegemony, and all countries had the ambition to unify the world. They attacked cities, plundered land and kept fighting. Every country has more than 200,000 troops, and Qin, Qi, Zhao and Chu each had more than 600,000 troops in their heyday. In the battle of Qin destroying Chu, Qin dispatched 600,000 troops and Chu expanded to 600,000. Millions of troops fought for more than two years, which was unprecedented in later dynasties. When the Ming Dynasty destroyed the Yuan Dynasty, the Northern Expeditionary Army was only 250,000, and journey to the south, the Ming army, went with the wind, and there was basically no fierce fighting. The Qing army went south to attack Ming, but the army was only 300 thousand, and there was fierce resistance in only a few places in the country, most of which were determined by legend.

It is very difficult for Qin to destroy the six countries. The shortest history of the six countries is more than 200 years, and the longest history is more than 800 years. Every country has its own strong popular base, so it is impossible to destroy a country without a cruel war. It will be much easier for later generations to unify the war. After all, reunification is the will of the people, and the separatist forces have a short history and their foundation cannot be compared with the six countries. The enemies in the unified war of the Tang Dynasty were Xue, Liu Wuzhou, Wang of Henan, Dou Jiande of Hebei, Xu Yuanlang of Shandong, etc. These separatist warlords are much weaker than the six Shandong countries that Qin faced. Qin completed the transformation from enfeoffment to centralization, and it was extremely difficult to change this historical process, which took six generations and seven kings to complete. There is no ideological obstacle to the reunification of later generations. Great reunification is deeply rooted in the hearts of the people, and division is unpopular. Therefore, the intensity of war and the degree of resistance are much weaker during reunification.