Evidence for Cambodia's earliest history comes mainly from archaeology, settlement remains, landscapes and metalworking sites. Written history becomes clearer with Funan and later Chenla, roughly from the first to the eighth century. Sambor Prei Kuk, identified with Ishanapura, was a Chenla capital in the late sixth and early seventh centuries. Its Sanskrit and Old Khmer inscriptions, religious buildings, hydraulic works and evidence of political centralization show how communities and institutions developed before Angkor. The Khmer Empire emerged around the ninth century and lasted until approximately the fifteenth century. Jayavarman II's accession in 802 is traditionally treated as its foundation date, although historians distinguish between political traditions and the evidence available for each period. Angkor included changing capitals, temples, reservoirs known as barays, canals and transport routes across an area of roughly 400 square kilometres. Angkor Wat, Angkor Thom and the Bayon, Preah Khan and Ta Prohm are major surviving sites. Koh Ker served as a capital under Jayavarman IV from about 921 or 928 to 944. Preah Vihear developed as a sacred site from the ninth century, while its main structure dates largely from the first half of the eleventh century. After the fifteenth century, political centres shifted towards western and southeastern areas. Siamese and Vietnamese influence shaped the Mekong, Tonle Sap and border regions. Evidence from the post-Angkor period is more fragmented, so its dates and political boundaries should not be treated as absolute. France established a protectorate over Cambodia in 1863. Japan occupied Cambodia during the Second World War, followed by a short period of independence in 1945. Cambodia became independent on 9 November 1953 under Norodom Sihanouk. The Kingdom of Cambodia lasted from 1953 to 1970, followed by the Sangkum Reastr Niyum period from 1955 to 1970, the Khmer Republic from 1970 to 1975 and Democratic Kampuchea from 17 April 1975 to 7 January 1979. The People’s Republic of Kampuchea governed from 1979 to 1989, followed by the State of Cambodia from 1989 to 1993. During Democratic Kampuchea, the Khmer Rouge and Communist Party of Kampuchea imposed forced relocations, collectivization, the abolition of markets and currency, forced labour, imprisonment, torture and persecution. The Extraordinary Chambers in the Courts of Cambodia, known as the ECCC, was a hybrid court created by the United Nations and the Royal Government of Cambodia. It examined crimes committed from 17 April 1975 to 6 January 1979 and focused on senior leaders and those most responsible. Its residual period began on 1 January 2023 and includes judgment review, victim and witness protection, archives, access to records and monitoring of reparations. ECCC findings are significant legal records but do not constitute a complete history of the period. Vietnamese intervention and the People’s Republic of Kampuchea were followed by prolonged conflict, border disputes and refugee movements. The Paris Peace Agreements were signed on 23 October 1991. The United Nations Transitional Authority in Cambodia operated from February 1992 to September 1993 with responsibilities that included human rights, elections, administration, security, repatriation and infrastructure. The Constitution of 24 September 1993 restored the Kingdom of Cambodia as a constitutional monarchy and established a pluralist democracy. Conflict and peace consolidation continued through the 1990s, including the 1997 crisis and the 1998 elections. Since the beginning of the twenty-first century, reconstruction, urbanization, economic change and heritage management have continued alongside disputes about memory and historical interpretation. Historical evidence is selective. War, looting, destruction, political control, elite perspectives and colonial records affect what survives and how it is interpreted. Researchers compare inscriptions, archaeological and landscape data, Chinese accounts, colonial files, party and court records, oral history, survivor testimony, museum collections and archives. Family, community and diaspora memories add evidence about experiences that official records may omit, but they also require comparison with other sources. The Ministry of Culture and Fine Arts, APSARA National Authority, the National Authority for Sambor Prei Kuk, the National Authority for Preah Vihear, universities, museums, DC-Cam, local communities and diaspora groups contribute to preservation, research or remembrance. Cambodia's UNESCO World Heritage sites include Angkor, inscribed in 1992; Preah Vihear, inscribed in 2008; Sambor Prei Kuk, inscribed in 2017; and Koh Ker, inscribed in 2023. A World Heritage designation provides a protection and management framework, not a complete account of Cambodia's history. APSARA and the International Coordinating Committee for Angkor manage conservation and protection in a living settlement, while the national authorities for Preah Vihear and Sambor Prei Kuk oversee their respective heritage areas. Access varies by institution, language, location, preservation status and security conditions. Laws, protection decrees and site management plans can impose duties on heritage protection and restrict activities at protected places. Museum entry, archive access, research permissions and heritage-site services have no single national price or processing time; the responsible institution sets the applicable conditions. Tuol Sleng, Choeung Ek, the ECCC and DC-Cam are significant documentation and remembrance sites. State, royalist, Buddhist, anti-colonial, survivor, family, diaspora and community memories can differ, so claims about the Khmer Rouge period, borders or heritage should identify their sources and limits. Angkor and monumental architecture provide essential evidence, but they do not represent the whole history of Cambodia, including the experiences of women, children, Cham communities, Indigenous peoples, rural populations, workers, border communities and the diaspora.
History in Cambodia
History in Cambodia traces the development of societies, institutions, landscapes and memories from prehistoric settlements to the present. Major periods include Funan and Chenla, the Khmer Empire and Angkor, post-Angkor political change, French colonial rule, independence, the Khmer Rouge period and postwar reconstruction. Cambodia's history is documented through archaeology, inscriptions, Chinese reports, colonial records, court files, museums, archives, oral histories and survivor testimony.
Tip
Treat Cambodia's history as a set of sources and perspectives rather than a single official story. Match your question to the relevant institution, period and place, then compare archaeological, official, legal, community and survivor evidence while recording uncertainty and source limitations.

