Tiananmen Square military parade every 10 years. However, the chaos of the Cultural Revolution prevented such an event from taking place on National Day, 1969. Ten years later, in 1979, the CCP again decided against a large scale celebration, coming at a time when Deng Xiaoping was still consolidating power and China had suffered a rebuff in a border war with Vietnam early in the year. By 1984, with the situation much improved and stabilized, the PRC held a military parade for the first time since 1959. The aftermath of the Tiananmen Square massacre prevented any such activities in October 1989, but
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