- Events
- 631 – Emperor Taizong of Tang, the Emperor of China, sends envoys to the Xueyantuo bearing gold and silk in order to seek the release of enslaved Chinese prisoners captured during the transition from Sui to Tang from the northern frontier; this embassy succeeded in freeing 80,000 Chinese men and women who were then returned to China.
- 1898 – The Hundred Days' Reform is started by Guangxu Emperor with a plan to change social, political and educational institutions in China, but is suspended by Empress Dowager Cixi after 104 days. The failed reform though led to the abolition of Imperial Examination in 1905.
- 1938 – Second Sino-Japanese War: The Chinese Nationalist government creates the 1938 Yellow River flood to halt Japanese forces. 500,000 to 900,000 civilians are killed.