2. Qin Shihuang established a centralized feudal dynasty, abolished the enfeoffment system, and realized the unity of state administration, taxation, justice, writing and weights and measures; Feudal land ownership was consolidated. These unifications are beneficial to productivity.
3. After the establishment of the Han Dynasty, the enfeoffment system in the Warring States period was not restored, but the Qin system was inherited; This is the Han-Qin system.
4. The key to this is that these systems were the requirements of social and historical development at that time (Comrade Xiang Yu did not make it clear in this respect); These systems in the Qin dynasty were conducive to the consolidation of feudal countries and the recovery of production.
5. As for the historical significance, the unified centralization has been truly determined since then.