This is a big year for anniversaries in China. On May 4, the People’s Republic will commemorate the centennial of the May Fourth Movement, the student-led protests in front of Beijing’s Tiananmen Gate in 1919 that marked the birth of Chinese nationalism. And then, one month later, on June 4, will come the 30th anniversary of the violent suppression of pro-democracy student protests on the same site. This milestone, by contrast, will not be officially acknowledged, much less commemorated, in China.