Dissemination of Propaganda: As mentioned above, the Hundred Flowers Campaign (1956-57) / Anti-Rightist Campaign (1957) limited the citizen's freedom of speech. Many who criticized Mao ended up being killed or being sent to the countryside. During the Cultural Revolution (1966-1976), propaganda was very popular. Culture, essentially, was destroyed. This included paintings, art, music, films, however those that were pro-Mao were kept.