The Four Olds refer to categories used by the Red Guards during the Cultural Revolution to characterize elements of Chinese culture prior to the Chinese Communist Revolution that they were attempting to destroy. The Four Olds were 'old ideas', 'old culture', 'old customs', and 'old habits'. During the Red August of 1966, shortly after the onset of the Cultural Revolution, the Red Guards' campaign to destroy the Four Olds began amid the massacres being carried out in Beijing.