1 territory and social atmosphere, before the Ming and Qing dynasties opened up the territory and expanded it, before the Ming and Qing dynasties closed their doors and compressed it.

Social system, slavery and feudalism

During the Spring and Autumn Period and the Warring States Period, cultural thoughts flourished, while Confucianism dominated in the Sui and Tang Dynasties, and the imperial examination system suppressed thoughts.

Probably from these aspects ~ that is, territory, social system and culture