In the history of the Qin Dynasty, the first emperor Ying Zheng fen vi Yu Lie, swallowed two weeks and died of the princes, and finally unified China in 221 BC, becoming the first great unified dynasty in Chinese history, and Yin Zheng also became the first emperor in Chinese history with his merits.
However, in the process of unification, he buried many hidden dangers, so that the Qin Dynasty II died.
The first is that there is too much killing in the process of unification
In fact, the unification of the Qin Dynasty, in addition to Yingzheng, the greatest contribution was that his grandfather, King Zhaoxiang of Qin, during his reign, destroyed Shu, destroyed Chu, defeated Qi, attacked the Three Jins, and attacked from afar and close to the Qin Dynasty, so that the Qin State already had a decisive advantage over the six eastern kingdoms at that time, and unification became a matter of time. However, in the process of their generations of reunification, they also killed too many people while annexing various countries, such as Zhao Guo Changping killing 400,000 Zhao troops in the first battle pit; the State of Chu not only flooded its capital, drowned 350,000 soldiers and civilians of the State of Chu, but also detained its king Chu Huai Before, so that the King of Chu Huai died in Qin, and the Duke of Chu Nan said: "Although Chu has three households, the death of Qin will be Chu", and in the process of the king cutting chu, he killed the famous general Xiang Yan of the State of Chu, sowing the seeds of hatred in the six kingdoms, which is also the root cause of Xiang Yu's vow to avenge Qin.
Secondly, after reunification, the system was not changed in time, and the law was severely punished by the law
The unification of the Qin state benefited from the Shang martingale transformation method that began with Xiao Gong, which established a system of farming and warfare, serving as a soldier in his spare time and farming when he was busy. This also made the national strength of the Qin state continue to rise, forming a trend of unification in the later period, but Qin Shi Huang did not change this state-building tone in time after the unification in 221 BC, or followed the set of severe punishment laws of the Shang Martingale, so that the people were nervous. In this case, it is reasonable for people's minds to change. Facts have proved that chen sheng in Daze Township was also because of the late construction of the Lishan Imperial Mausoleum and the possibility of being killed, becoming the first peasant revolt leader in Chinese history and firing the first shot against the tyranny of the Qin Dynasty.
Then there was Qin Shi Huang's own over-haste in governance
It is often said that the dynasty before the Han and Tang dynasties was also very great - the strong Han chengqin, the sheng tang chengsui. There are many similarities between the Qin and Sui dynasties, and in addition to the short-lived dynasty that we all know, it is also the same to be too hasty in governance. Qin Shi Huang built the Great Wall, built the Afang Palace, built the Lishan Imperial Mausoleum, and the people were heavily enslaved, and indirectly reduced the number of farmers, and paid heavy taxes to cope with the country's strong expenditure. People's minds change, whether it is ordinary people or the nobles of the Six Kingdoms.
Finally, there is the quality of the monarch and the use of personnel in the Qin court
After the death of Qin Shi Huang, Zhao Gao tampered with the edict, causing the virtuous Fu Su to be killed, Qin II took the throne, the tyranny was even worse than that of Qin Shi Huang, and Qin II Hu Hai was hesitant to enjoy it, and the government was mostly handled by Zhao Gao, who even directed a good play in the court that pointed out deer as horses - those who followed me were Chang, those who rebelled against me died, and the xianchens were mostly excluded. In fact, although the giant deer failed after Zhang Handan, the pillar of optimus of the Qin Empire, if there was no Zhao Gao, he would not casually surrender to Xiang Yu, which can be seen from the fact that when Liu Bangdong came out later, Zhang Handan died for Xiang Yu, and Zhang Handan was not a capricious person. Therefore, if Zhang Handan is given full power, the Qin state will certainly be destroyed, but the time of destruction will certainly be different.
Mingjing Junyue: The Qin Dynasty was too hasty in its administration, and did not care for the people, and the nobles of the Six Kingdoms have been lurking, not to mention that they also used the harsh punishment of the Legalists to control the remnants of the Six Kingdoms, and the personal quality of the monarch was generally not assisted by sages, so that Chen Sheng wu Guangzexiang sounded a gunshot, and the flames of the uprising quickly burned all over the qin dynasty.