(1) ended the long-term separatist regime and established the first unified multi-ethnic feudal country in the history of China.

(2) Created a political and economic system that had a profound impact on the history of China and was inherited by later generations.

(3) The death of the Qin Dynasty due to tyranny taught the rulers of the Han Dynasty and later generations a profound lesson.

④ The Great Wall of Wan Li built by Qin is a great ancient project with far-reaching influence.