1989 Tiananmen Square protests on Taiwanese national radio. Chai Ling fled to France and then went on to the United States to study at Princeton and Harvard. She then founded an IT start-up company and a non-profit organization called All Girls Allowed, which addresses issues such as women's rights and female infanticide in China. Li Lu became an investment banker and venture capitalist on Wall Street, started his own hedge fund and became a business partner to Charlie Munger of Berkshire Hathaway, partly through human rights contacts he was acquainted with as a result of his involvement at Tiananmen Square. Chen Ziming and Wang
Defend Tiananmen Square Headquarters Ling led the formation of crowd in the annunciation of the following oath on the Tiananmen Square: "I swear I will protect the republic and Tiananmen Square with my young life. Heads can roll, blood can flow, but the people's Square can never be lost! We are willing to fight to the last person." According to Chai Ling's book "", and Wu Renhua's book Major Events, Tiananmen 1989 at least one hundred thousand people gathered in the Square when Chai Ling took the oath. And some people joined them after Wang Dan announced the formation of the Defend Tiananmen Square