The Four Olds or the Four Old Things (simplified Chinese: 四旧; traditional Chinese: 四舊; pinyin: sì jiù) were Old Customs, Old Culture, Old Habits, and Old Ideas. One of the stated goals of the Cultural Revolution in the People's Republic of China was to bring an end to the Four Olds. The campaign to destroy the Four Olds began in Beijing on August 19, 1966, shortly after the launch of the Cultural Revolution.
The term "four olds" first appeared on June 1, 1966, in Chen Boda's People's Daily editorial, "Sweep Away All Monsters and Demons", where the Old Things were described as anti-proletarian, "fostered by the exploiting classes, [and to] have poisoned the minds of the people for thousands of years". However, which customs, cultures, habits, and ideas specifically constituted the "Four Olds" were never clearly defined. On August 8, the Central Committee used the term at its 8th National Congress. The term was endorsed on August 18 by Lin Biao at a mass rally, and from there it spread to Red Flag magazine, as well as to Red Guard publications. Calls to destroy the "Four Olds" usually did not appear in isolation, but were contrasted with the hope of building the "Four News" (new customs, new culture, new habits, new ideas). The idea that Chinese culture was responsible for China's economic backwardness and needed to be reformed had some precedent in the May Fourth Movement (1919), and was also encouraged by colonial authorities during the Japanese occupation of China.
The campaign to Destroy the Four Olds and Cultivate the Four News (Chinese: 破四旧立四新; pinyin: Pò Sìjiù Lì Sìxīn) began in Beijing on August 19. The first things to change were the names of streets and stores: "Blue Sky Clothes Store" to "Defending Mao Zedong Clothes Store", "Cai E Road" to "Red Guard Road", and so forth. Many people also changed their given names to revolutionary slogans, such as Zhihong (志红, "Determined Red") or Jige (继革, "Following the Revolution"). Other manifestations of the Red Guard campaign included giving speeches, posting big-character posters, and harassment of people, such as intellectuals, who defiantly demonstrated the Four Olds. In later stages of the campaign, examples of Chinese architecture were destroyed, classical literature and Chinese paintings were torn apart, and Chinese temples were desecrated. Many families' long-kept genealogy books were burned to ashes. However, the Chinese government stopped short of endorsing the physical destruction of products. In fact, the government protected significant archaeological discoveries made during the Cultural Revolution, such as the Mawangdui Tombs and the Terracotta Army.
Many artists and other cultural professionals were persecuted by vigilantes, although some cultural advances came about because of the period, including the integration of "new" western instruments and ballet into Peking opera. Traditional Chinese medicine also advanced despite the Four Olds campaign, most significantly by the derivation of the anti-malarial drug artemisinin from the qinghao plant. Upon learning that Red Guards were approaching the Forbidden City, Premier Zhou Enlai ordered the gates shut and deployed the People's Liberation Army against the Red Guards. After this incident, Zhou attempted to create a more peaceful code of conduct for the Red Guards, with the support of cadres Tao Zhu, Li Fuchuan, and Chen Yi. However, this plan was foiled by the ultra-leftists Kang Sheng, Jiang Qing, and Zhang Chunqiao. Although many of Zhou's other initiatives to stem the destruction failed because of their or Mao's own opposition, he did succeed in preventing Beijing from being renamed "East Is Red City" and the Chinese guardian lions in front of Tian'anmen Square from being replaced with statues of Mao.
Popular slogans 
- "beating down the bad elements"
- "beating down imperialism"
- "beating down foreign religion"
- "beating down Jesus following"
- "beating down the counter revolutionists"
Appraisal of damage 
No official statistics have ever been produced by the Communist party in terms of reporting the actual cost of damage. By 1978, many stories of death and destruction caused by the Cultural Revolution had leaked out of China and became known worldwide.
Starting in the 1990s and continuing into the 21st century, there has been a massive rebuilding effort underway to restore and rebuild cultural sites that were destroyed or damaged during the Cultural Revolution. This has coincided with a resurgence in interest in, and demand for, Chinese cultural artifacts. Some have exploited this increased demand, producing counterfeit artifacts.
See also 
- Spence, Jonathan. The Search for Modern China. 2nd ed. New York: W.W. Norton & Co., 1999. p575
- Law, Kam-yee.  (2003). The Chinese Cultural Revolution Reconsidered: beyond purge and Holocaust. ISBN 0-333-73835-7
- Li, Gucheng. A Glossary of Political Terms of The People's Republic of China. Chinese University Press. p. 427.
- Lu, Xing. Rhetoric of the Chinese Cultural Revolution: The Impact on Chinese Thought, Culture, and Communication. University of South Carolina Press. pp. 61–62.
- Gao, Mobo (2008). The Battle for China's Past: Mao and the Cultural Revolution. Pluto Press. pp. 21–22.
- Wen, Chihua. Madsen, Richard P.  (1995). The Red Mirror: Children of China's Cultural Revolution. Westview Press. ISBN 0-8133-2488-2
- Macfarquhar, Roderick; Schoenhals, Michael (2008). Mao's Last Revolution. Harvard University Press. pp. 118–119.
- Roberts, Richard H.  (1995). Religion and the Transformations of Capitalism. Routledge publishing. ISBN 0-415-11917-0