- Events
- 1644 – Ming general Wu Sangui forms an alliance with the invading Manchus and opens the gates of the Great Wall of China at Shanhaiguan pass, letting the Manchus through towards the capital Beijing.
- 1966 – The first prominent dàzìbào during the Cultural Revolution in China is posted at Peking University.
- 1977 – Chinese government removes a decade old ban on William Shakespeare's work, effectively ending the Cultural Revolution started in 1966.
- 1999 – The United States House of Representatives releases the Cox Report which details the People's Republic of China's nuclear espionage against the U.S. over the prior two decades.