Ying Zheng, the first Qin Emperor, was able to destroy six countries, unify the world and establish a powerful centralized empire. This is the process of continuous reform and accumulation of several generations of Qin Jun in Qin State 100, and it is not achieved overnight.
After Qin Shihuang unified the world, great political changes were made to the ancient dynasty system in China, which lasted for nearly two thousand years. He abolished the system of enfeoffment, established counties, and carried out earth-shaking reforms in culture, military and economy. Although such political changes strengthened centralization, they also concealed the crisis of underground resistance, especially in the early days of the empire.
As an emperor with ruthless political skills, Qin Shihuang had the ability to control this hidden crisis. On the one hand, he eliminated the rebel forces of the vassal States, on the other hand, he suppressed the lower classes, and at the same time exercised power rule in culture and system, while maintaining a high-handed policy in the military. These aspects were strongly implemented during the Qin Shihuang period, so during the Ying Zheng period, even if some rebel forces appeared in China, they did not cause large-scale unrest and were quickly put out.
After the death of Qin Shihuang, the state of Qin itself was in great turmoil, and Hu Hai's political stance was incorrect, which was criticized by both the imperial court and the people. Li Si and Emperor Mad Hu Hai of Zhao Gao, while Fu Su, the orthodox and legal heir, was forced to commit suicide, which did great harm to the political structure of Qin State, and hit and hurt the Guanlong clique and the aristocratic class in North Korea. At the same time, Meng Tian and Meng Yi, the main military representatives of Qin State, were killed.
The suppression of the Montessori family, the military pillar, was fatal to the establishment of Qin State. Both Wang Jian's family in the early Qin Dynasty and Sima Cuo's family in the late Qin Dynasty were unable to lift their heads. The only Montessori family that could defend the country and the dynasty was basically destroyed. Coupled with the killing of Prince Fu Cha, who had high political prestige and gentle temperament, the power of Qin was greatly weakened militarily and politically.
After Hu Hai came to power, there was an infighting between Li Si and Zhao Gao. Li Si, the only one who could balance Zhao Gao, was killed. The death of the last capable prime minister of Qin almost declared the demise of Qin. As a eunuch, Zhao Gao didn't have the ability to command a powerful empire, and he lacked the idea of loyalty to the country. Under Zhao Gao's ordeal, the dominance of the whole Qin Empire was far less than that of Qin Shihuang.
Internally, the power struggle after Qin Shihuang's death quickly consumed the power of the whole state of Qin; From the external factors, the Zionist forces lurking in the other six countries took advantage of Qin's weak strength at this time, all of them were saving their strength and waiting for an opportunity. Coincided with the uprisings in Chen Sheng, Guangwu and osawa, peasant uprisings swarmed around the country, and various vassal forces responded immediately. At this time, the riots all over the country have become a prairie fire, and the Qin court is still discussing the red deer at this time.
To sum up, during the Qin Shihuang period, due to Ying Zheng's ruling ability and powerful means of governing the country, the whole Qin Dynasty was stable and efficient, and the whole empire was able to face the crisis calmly; After Qin Ershi and Hu Hai succeeded to the throne, the ruling power of Qin State was exhausted in the power struggle, and it was impossible to suppress the rise of resistance forces politically and militarily. Therefore, at an appropriate time, the nationwide rebellion is in full swing.