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Cambodia History Timeline

800 - 1700s

  • (800s - 1500s) Cambodia was part of Khmer Empire
  • (1132) King Suryavarman II failed at an attempt to invade Vietnam
  • (1177) Cham invaders took control of Yasodharapura, the capital, executed the king
  • (1238) Thai chieftains from Sukhothai established independent Sukhothai Kingdom
  • (1431) Thai invaded Angkor
  • (1593) King Sattha requested protection against the Thai from governor of the Philippines
  • (1594) Cambodian capital of Lovek captured by Thai
  • (1594) King Sattha died
  • (1597) Son of King Sattha appointed to the throne by Spain
  • (1599) Malay mercenaries murdered Spanish soldiers in Cambodia
  • (1623) Vietnamese refugees allowed to settle in Prey Nokor
  • (1659) Vietnam invaded Cambodia following civil war
  • (1690) Vietnam annexed Cambodia
  • (1749) Mekong Delta conquered by Vietnamese
  • (1779) Thais installed new Khmer king, Ang Eng
1800 - 1900
  • (1820) Khmer revolt against Vietnamese rule
  • (1841) Ang Guong became king
  • (1851) Vietnamese occupation overthrown by Cambodia
  • (1860) King Ang Duong died, son Norodom became king
  • (1863) Cambodia became protectorate of France
  • (1887) Cambodia incorporated into Indochinese Union
  • (1941) Prince Norodom Sihanouk became king
  • (1941 - 1945) Japan occupied Cambodia during World War II
  • (1946) France reimposed protectorate
  • (1946) Cambodians allowed to form political parties under new constitution
  • (1946) Armed campaign against France begun by Communist guerrillas
  • (1953) Cambodia won independence, became Kingdom of Cambodia
  • (1955) King Sihanouk abdicated throne and became prime minister, his father, Norodom Suramarit, became king
  • (1960) King Norodom Suramarit died, Sihanouk became head of state
  • (1963) Cambodia severed ties with South Vietnam
  • (1965) Sihanouk broke off relations with United States, allowed North Vietnamese guerillas to set up bases
  • (1969) U.S. began bombing campaign in Cambodia against North Vietnamese forces
  • (1970) Prime Minister General Lon Noi staged coup, deposed Sihanouk. Lon Noi assumed power, proclaimed Khmer Republic
  • (1970) Lon Noi sent forces to fight North Vietnamese in Cambodia
  • (1970) While in exile in China, Sihanouk formed guerrilla movement
  • (1975) Lon Noi overthrown by Pol Pot. Sihanouk became head of state, country renamed Kampuchea
  • (1975) City residents evacuated to country to become agricultural workers, currency became worthless, basic freedoms were reduced, religion banned
  • (1975 - 1978) Middle-class citizens tortured, executed, others starved to death or died from disease; death toll estimated at over 1.7 million
  • (1976) Country renamed Democratic Kampuchea
  • (1976) Sihanouk resigned, Khieu Samphan became head of state, Pol Pot became prime minister
  • (1977) Fighting with Vietnam began
  • (1979) Cambodian-Vietnamese War: Phnom Penh captured by Vietnamese, People's Republic of Kampuchea established
  • (1981) National Assembly elections won by pro-Vietnamese Kampuchean People's Revolutionary Party

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This page was last updated on April 7, 2017.