人民英雄纪念碑
After Zhou Enlai died on January 8, 1976, Yao Wenyuan published a series of propaganda works criticizing the legacy of Zhou, which drew widespread public disapproval. On March 20, 1976, students from the Niufang Primary School laid a wreath at the Monument to the People's Heroes in Tiananmen Square to commemorate Zhou, and others followed. Many of the wreaths carried poems remembering the Premier also criticized the Gang of Four through allegorical allusions. By the time of Qingming Festival on April 4, a traditional tomb-sweeping holiday, the square was filled with wreaths and poetry and an estimated two million city residents visited to pay their respects. The following day, the Gang of Four ordered the police to seize and destroy the wreaths and seal off the square from further access. In clashes with residents, hundreds were arrested. The April Fifth Incident, the largest spontaneous public gathering against the Cultural Revolution, was branded a counter-revolutionary criminal incident blamed on Deng Xiaoping, who was purged.