20th anniversary of the 1989 Tiananmen Square protests protests of 1989, thousands of students and protests had gathered in Tiananmen square, when troops opened fire. An unknown number of people were wounded or died in the incident. As the People's Republic of China has publicly embraced the one country, two systems model of governance for Hong Kong, the annual 4 June observance which has become a tradition since 1989 has continued after the transfer of sovereignty from Britain to China. It is the only place on Chinese soil where the event is openly commemorated in any way and on any scale. The 20th anniversary was commemorated in the
Reactions to the 1989 Tiananmen Square protests accounts refer to. As Louisa Lim notes in her book, "The People's Republic of Amnesia: Tiananmen Revisited", many young Chinese know almost nothing of the Tiananmen Square protests. In an informal survey, Lim showed the iconic photo of Tank Man to 100 Chinese university students; only 15 correctly identified it as being an image of Tiananmen Square. Perry Link, a Chinese language and literature scholar, writes, "The story of the massacre is banned from textbooks, the media, and all other public contexts." In 2014, Gu Yimin, a Chinese activist, was sentenced to 18 months in prison for attempting to hold