Why is this?
First, the key to the revival of Qin nobles in the six countries lies in the nobles in the six countries, such as Tian descendants of Qi, Xiang, Jing, Zhao Wangxie, Han Wangcheng and Wei of Chu. Relatively speaking, the exception is Yan, because the story of "Jing Ke stabbed the king of Qin" led Qin Shihuang to be cruel to Yan, so that the aristocratic power of Yan was relatively weak.
So, where did all the nobles of Qin go?
1, killed by Qin Ershi Hu Hai.
After Hu Hai acceded to the throne, he once said to Zhao Gao, "I became emperor at such a young age, and I was worried that my descendants would stare at my throne. What should I do? " Zhao Gao gave him an idea: investigate them thoroughly and kill all those who are guilty.
As a result, most of Hu Hai II's brothers and sisters were killed, and even the law-abiding people were killed by a random charge. The intercessor was also charged with libel, and during this period, many royal children should have died.
2. Shang Yang Reform
The core point of Shang Yang's political reform is "abolishing the old Qing Dynasty's history and wealth system, rewarding military achievements, prohibiting private fighting, and promulgating the 20-rank knighthood system rewarded according to military achievements", which fundamentally stimulated Qin people's enthusiasm for joining the army, but at the same time gradually eliminated the old aristocratic system.
In addition, from the county system widely implemented during Shang Yang's political reform to the later county system, the enfeoffment system has been completely replaced in Qin State, and the privileges of nobles have disappeared, so naturally there is no soil for reproduction and development.
Therefore, the nobility, as the main body of the restoration of Qin State, was extremely weak in Qin State, which was also the most crucial reason why the "old Qin people" did not restore the country.
Second, the continuity of the system from the Spring and Autumn Period to the Warring States Period, and then to the unification of Qin Dynasty, for ordinary people, whose management actually does not have such a great sense of belonging, more depends on whether the people's lives meet the requirements, or whether there is room for improvement.
In terms of system, Qin people can gradually grow from an ordinary country to a superpower, and the "Shang Yang Reform" plays a vital role, which means that the system at that time was very suitable for the management of Qin people. The system that Liu Bang later promoted was precisely this whole set of Qin people's management methods. Therefore, for the people in Guanzhong, Hanzhong, Pakistan, Shu and other places, except that the country name is changed to Han, the others are no different from Qin.
Therefore, during Liu Bang's reign, not only the land of Qin was as stable as ever, but even the pace of going to Kanto was no different from that when the former Qin came to the six countries. Young people who fantasize about making contributions have joined Liu Bang's Han army, fought against the Kwantung Army, occupied Kanto territory, and finally reunified.
3. Hatred brought by Xiang Yu Xiang Yu's killing and surrender in Xin 'an, coupled with the slaughter of Xianyang soldiers and civilians, the killing of Zi Ying, the king of Qin, the burning of Qin Palace, the looting of Qin Gong's treasures and the looting of Qin Gong's daughters, are all acts of hatred in Qin.
As a direct result of this hatred, he enfeoffed Sanqin (Wang Yong Zhang Han, Zhai Wang Dongming and Wang Sai Sima Xin) and was soon defeated by Liu Bang because he could not get the support of the army, the people and the people. When Liu Bang occupied Guanzhong, Hanzhong, Ba and Shu, the laws and regulations of Qin people were improved. In fact, in essence, "Qin" realized the revival of the country. The difference is that the ruler became Liu Bang and his rich group, and the country name was changed to "Han".
The brilliance of Liu Bang Group lies in making full use of the advanced system of Qin people to manage the inherent land of Qin people, which is also the basis for his later victory. Although the "old Qin people" did not restore the country, they regained the great unity like the restored country.
Of course, at this point, Liu Bang still has a lot to do with Xiang Yu's starting point.
Xiang Yu has no intention of being king in Guanzhong. His roots are in Chu and Pengcheng. So after he occupied Xianyang, he would rob women and treasure. Liu Bang's entire rich group, mostly middle and lower class people, has no foundation, so he is more eager to be king in Guanzhong, which is the basis of his "three chapters of the law" in Qin State. On the contrary, after he occupied Cheng Peng, he robbed women and treasures like Xiang Yu.
Therefore, in many cases, it cannot be said that there must be advantages from a high starting point, and the "county system" must be more favorable than the "enfeoffment system", just depending on whether it is suitable for the environment.