中国民主化運動
Wang Dan (born February 26, 1969) is a leader of the Chinese democracy movement and was one of the most visible student leaders in the Tiananmen Square protests of 1989. He holds a Ph.D. in history from Harvard University, and from August 2009 to February 2010, Wang taught cross-strait history at Taiwan's National Chengchi University, as a visiting scholar. He then taught at National Tsing Hua University until 2015.