After Shang Yang's political reform, Qin accumulated a lot of material and financial resources, including the army. Therefore, the influence of Qin became stronger and stronger, so at this time, Ying Zheng thought of "turning the family into the country", that is, turning the original split situation into a unified situation, which is more convenient for management and control. Especially after the establishment of the Qin empire, the rule maintained by aristocratic lineage became a county system. Including unified writing, currency and weights and measures. A series of measures are aimed at realizing "one world"
So did the Han Dynasty. After the establishment of the Han Dynasty, Liu Bang was still imitating the system of the Qin Dynasty, because the Qin Dynasty was powerful. So he didn't open a new national system, but he was also smarter than Qin Shihuang. Liu Bang began to learn to "help the world", which made up for the most missing part of Qin Shihuang's thought of "home country and the world", so the economic strength of the Han Dynasty empire was quite good, not limited to military strength. At the same time, the "Nine Lightnesses" in the Han Dynasty also embodies the dual meanings of "home" and "country", and has the lofty thought of "home" and the thought of "turning home into country".
The strength of these two dynasties should not be underestimated. The management mode from aristocrats to countries, and the road from splitting the country to unifying the country have all opened a new chapter in the history of China.