What was the reason for the prosperity of the Sui Dynasty?

(1) Reasons: ① National unity and social stability. ② Emperor Wendi of Sui Dynasty vigorously reformed the system, developed production and attached importance to official management. The country is unified and stable, and the burden on the people is reduced.

(2) Performance: During the reign of Emperor Wendi of Sui Dynasty for more than 20 years, the population greatly increased. The Sui Dynasty built many big warehouse in Chang 'an and Luoyang. According to historical records, the stored grain and cloth can supply the government's expenditure for 50 or 60 years. Description: The economic prosperity of the Sui Dynasty was during the reign of Emperor Wen, not during the reign of Yang Di.