The post-Angkor period of Cambodia (), also called the Middle period, refers to the historical era from the early 15th century to 1863, the beginning of the
French protectorate of Cambodia
The French protectorate of Cambodia (; ) refers to the Kingdom of Cambodia when it was a French protectorate within French Indochina, a collection of Southeast Asian protectorates within the French colonial empire. The protectorate was establi ...
. As reliable sources (for the 15th and 16th centuries, in particular) are very rare, a defensible and conclusive explanation that relates to concrete events that manifest the decline of the
Khmer Empire
The Khmer Empire was an empire in Southeast Asia, centered on Hydraulic empire, hydraulic cities in what is now northern Cambodia. Known as Kambuja (; ) by its inhabitants, it grew out of the former civilization of Chenla and lasted from 802 t ...
, recognised unanimously by the scientific community, has so far not been produced. However, most modern historians have approached a consensus in which several distinct and gradual changes of religious, dynastic, administrative and military nature, environmental problems and ecological imbalance coincided with shifts of power in Indochina and must all be taken into account to make an interpretation. In recent years scholars' focus has shifted increasingly towards human–environment interactions and the ecological consequences, including natural disasters, such as flooding and droughts.
Stone
epigraphy
Epigraphy () is the study of inscriptions, or epigraphs, as writing; it is the science of identifying graphemes, clarifying their meanings, classifying their uses according to dates and cultural contexts, and drawing conclusions about the wr ...
in
temples
A temple (from the Latin ) is a place of worship, a building used for spiritual rituals and activities such as prayer and sacrifice. By convention, the specially built places of worship of some religions are commonly called "temples" in Engli ...
, which had been the primary source for Khmer history, is already a rarity throughout the 13th century, ends in the third decade of the fourteenth, and does not resume until the mid-16th century. Recording of the
Royal Chronology discontinues with King Jayavarman IX Parameshwara (or Jayavarma-Paramesvara), who reigned from 1327 to 1336. There exists not a single contemporary record of even a king’s name for over 200 years. Construction and maintenance of monumental temple architecture had come to a standstill after
Jayavarman VII
Jayavarman VII (), known posthumously as Mahaparamasaugata (, c. 1122–1218), was king of the Khmer Empire. He was the son of King Dharanindravarman II (r. 1150–1160) and Queen Sri Jayarajacudamani.
He was the first king devoted to Buddhism, ...
's reign. According to author
Michael Vickery there only exist external sources for Cambodia’s 15th century, the Chinese ''
Ming Shilu
The ''Ming Veritable Records'' or ''Ming Shilu'' (), contains the imperial annals of the emperors of the Ming dynasty (1368–1644). It is the single largest historical source of information on the dynasty. According to modern historians, it "p ...
'' ("Veritable Records") and the earliest Royal Chronicle of
Ayutthaya
Ayutthaya, Ayudhya, or Ayuthia may refer to:
* Ayutthaya Kingdom, a Thai kingdom that existed from 1350 to 1767
** Ayutthaya Historical Park, the ruins of the old capital city of the Ayutthaya Kingdom
* Phra Nakhon Si Ayutthaya province (locall ...
, which must be interpreted with greatest caution.
The single incident which undoubtedly reflects reality, the central reference point for the entire 15th century, is a
Siamese intervention of some undisclosed nature at the capital
Yasodharapura (Angkor Thom) around the year 1431. Historians relate the event to the shift of Cambodia's political centre southward to the river port region of
Phnom Penh
Phnom Penh is the Capital city, capital and List of cities and towns in Cambodia, most populous city of Cambodia. It has been the national capital since 1865 and has grown to become the nation's primate city and its political, economic, industr ...
and later
Longvek.
Sources for the 16th century are more numerous, although still coming from outside of Cambodia. The kingdom's new capital was
Longvek, on the
Mekong
The Mekong or Mekong River ( , ) is a transboundary river in East Asia and Southeast Asia. It is the world's twelfth-longest river and the third-longest in Asia with an estimated length of and a drainage area of , discharging of wat ...
, which prospered as an integral part of the 16th century
Asian maritime trade network, via which the first contact with
European explorers and adventurers occurred. The rivalry with the
Ayutthaya Kingdom
The Ayutthaya Kingdom or the Empire of Ayutthaya was a Thai people, Thai kingdom that existed in Southeast Asia from 1351 to 1767, centered around the city of Phra Nakhon Si Ayutthaya (city), Ayutthaya, in Siam, or present-day Thailand. Europe ...
in the west resulted in several conflicts, including the Siamese conquest of
Longvek in 1594. The
Vietnamese southward expansion reached Prei Nokor/
Saigon
Ho Chi Minh City (HCMC) ('','' TP.HCM; ), commonly known as Saigon (; ), is the most populous city in Vietnam with a population of around 14 million in 2025.
The city's geography is defined by rivers and canals, of which the largest is Saigo ...
at the
Mekong Delta
The Mekong Delta ( or simply ), also known as the Western Region () or South-western region (), is the list of regions of Vietnam, region in southwestern Vietnam where the Mekong, Mekong River River delta, approaches and empties into the sea th ...
in the 17th century. This event initiates the slow process of Cambodia losing access to the seas and independent marine trade.
Siamese and Vietnamese dominance intensified during the 17th and 18th century, provoking frequent displacements of the seat of power as the Khmer monarch's authority decreased to the state of a vassal. Both powers alternately demanded subservience and tribute from the Cambodian court. In the mid 19th century, with dynasties in Siam and Vietnam firmly established, Cambodia was placed under joint
suzerainty
A suzerain (, from Old French "above" + "supreme, chief") is a person, state (polity)">state or polity who has supremacy and dominant influence over the foreign policy">polity.html" ;"title="state (polity)">state or polity">state (polity)">st ...
between the two regional empires, thereby the Cambodian kingdom lost its national sovereignty.
British
British may refer to:
Peoples, culture, and language
* British people, nationals or natives of the United Kingdom, British Overseas Territories and Crown Dependencies.
* British national identity, the characteristics of British people and culture ...
agent
John Crawfurd
John Crawfurd (13 August 1783 – 11 May 1868) was a British physician, colonial administrator, diplomat and writer who served as the second and last resident of Singapore.
Early life
He was born on Islay, in Argyll, Scotland, the son of Sam ...
states: "...the King of that ancient Kingdom is ready to throw himself under the protection of any European nation..." To save Cambodia from being incorporated into Vietnam and Siam, King
Ang Duong
Ang Duong ( ; 12 June 1796 – 18 October 1860) was the King of Cambodia from 1848 to his death in 1860. Formally invested in 1848, his rule benefited a kingdom that had suffered from several centuries of royal dissent and decline.
His politics f ...
agreed to
colonial France's offers of
protection, which took effect with King
Norodom Prohmbarirak signing and officially recognising the French protectorate on 11 August 1863.
Historical background and causes
The
Khmer Empire
The Khmer Empire was an empire in Southeast Asia, centered on Hydraulic empire, hydraulic cities in what is now northern Cambodia. Known as Kambuja (; ) by its inhabitants, it grew out of the former civilization of Chenla and lasted from 802 t ...
had steadily gained hegemonic power over most of
mainland Southeast Asia
Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...
since its early days in the 8th and 9th centuries. Rivalries and wars with its western neighbour, the
Pagan Kingdom of the
Mon people
The Mon (; Thai Mon: ဂကူမည်; , ; , ) are an ethnic group who inhabit Lower Myanmar's Mon State, Kayin State, Kayah State, Tanintharyi Region, Bago Region, the Irrawaddy Delta, and several areas in Thailand (mostly in Pathum Than ...
of modern-day
Burma
Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and ha ...
were less numerous and decisive than those with
Champa
Champa (Cham language, Cham: ꨌꩌꨛꨩ, چمڤا; ; 占城 or 占婆) was a collection of independent Chams, Cham Polity, polities that extended across the coast of what is present-day Central Vietnam, central and southern Vietnam from ...
to the east. The Khmer and
Cham Hindu
Hindus (; ; also known as Sanātanīs) are people who religiously adhere to Hinduism, also known by its endonym Sanātana Dharma. Jeffery D. Long (2007), A Vision for Hinduism, IB Tauris, , pp. 35–37 Historically, the term has also be ...
kingdoms remained for centuries preoccupied with each other's containment and it has been argued that one of the Khmer's military objectives was "...in the reigns of the Angkor kings Suryavarman II and Jayavarman VII." the conquest of the Cham ports, "...important in the international trade of the time". Even though the Khmer suffered a number of serious defeats, such as the Cham invasion of Angkor in 1177, the empire quickly recovered, capable to strike back, as it was the case in 1181 with the invasion of the Cham city-state of
Vijaya
Vijaya may refer to:
Places
* Vijaya (Champa), a city-state and former capital of the historic Champa in what is now Vietnam
* Vijayawada, a city in Andhra Pradesh, India
People
* Prince Vijaya of Sri Lanka (fl. 543–505 BC), earliest recorde ...
.
Mongol incursions into southern
China
China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
and political and cultural pressure caused the southward
migration
Migration, migratory, or migrate may refer to: Human migration
* Human migration, physical movement by humans from one region to another
** International migration, when peoples cross state boundaries and stay in the host state for some minimum le ...
of the
Tai people and
Thai people
Thai people, historically known as Siamese people, are an ethnic group native to Thailand. In a narrower and ethnic sense, the Thais are also a Tai peoples, Tai ethnic group dominant in Central Thailand, Central and Southern Thailand (Siam prope ...
and their settling on the upper
Chao Phraya River
The Chao Phraya River is the major river in Thailand, with its low alluvial plain forming the centre of the country. It flows through Bangkok and then into the Gulf of Thailand.
Etymology
Written evidence of the river being referred to by the ...
in the 12th century. The
Sukhothai Kingdom
The Sukhothai Kingdom was a post-classical Siamese kingdom (Mandala (political model), ''maṇḍala'') in Mainland Southeast Asia surrounding the ancient capital city of Sukhothai Historical Park, Sukhothai in present-day north-central Thaila ...
and later the
Ayutthaya Kingdom
The Ayutthaya Kingdom or the Empire of Ayutthaya was a Thai people, Thai kingdom that existed in Southeast Asia from 1351 to 1767, centered around the city of Phra Nakhon Si Ayutthaya (city), Ayutthaya, in Siam, or present-day Thailand. Europe ...
were established and "...conquered the Khmers of the upper and central Menam [
Chao Phraya River
The Chao Phraya River is the major river in Thailand, with its low alluvial plain forming the centre of the country. It flows through Bangkok and then into the Gulf of Thailand.
Etymology
Written evidence of the river being referred to by the ...
] valley and greatly extended their territory..."
Military setbacks
Although a number of sources, such as the Cambodian Royal Chronicles and the Royal chronicles of
Ayutthaya
Ayutthaya, Ayudhya, or Ayuthia may refer to:
* Ayutthaya Kingdom, a Thai kingdom that existed from 1350 to 1767
** Ayutthaya Historical Park, the ruins of the old capital city of the Ayutthaya Kingdom
* Phra Nakhon Si Ayutthaya province (locall ...
contain recordings of military expeditions and raids with associated dates and the names of sovereigns and warlords, several influential scholars, such as
David Chandler and
Michael Vickery doubt the accuracy and reliability of these texts.
Other authors, however, criticise this rigid "overall assessment".
David Chandler states in ''A Global Encyclopedia of Historical Writing, Volume 2'': "Michael Vickery has argued that Cambodian chronicles, including this one, that treat events earlier than 1550 cannot be verified, and were often copied from Thai chronicles about Thailand..."
Linguist Jean-Michel Filippi concludes: "The chronology of Cambodian history itself is more a chrono-ideology with a pivotal role offered to Angkor." Similarities apply to Thai chronological records, with the notable example of the ''
Ramkhamhaeng controversy''.
According to the Siamese Royal chronicles of
Paramanuchitchinorot, clashes occurred in 1350, around 1380, 1418 and 1431.
Land or people debate
Siamese sources record the habit of capturing sizeable numbers of inhabitants from the capital cities and centres of civilisation of the defeated parties in
Chiang Mai
Chiang Mai, sometimes written as Chiengmai or Chiangmai, is the largest city in northern Thailand, the capital of Chiang Mai province and the List of municipalities in Thailand#Largest cities by urban population, second largest city in Thailan ...
and Angkor which can be assumed to have accelerated the cultural decline.
Author
Michael Vickery debates the degree of importance of this subject in his publication "Two Historical Records of the Kingdom of Vientiane - Land or People?": "It is not at all certain that Angkor desired manpower in central Thailand, rather than simply control over the rich agricultural resources." and "...whether the political economy of early Southeast Asia resulted in rulers being more concerned with control of land or control of people..." and "...both sides of this discussion have offered ad hoc, case-by-case pronunciamentos, which are then repeated like mantra... Critical discussion of the question is long overdue..."
;Contrary views:
Author Akin Rabibhadana, who quotes Ram Khamhaeng: "One particular characteristic of the historical Southeast Asian mainland states was the lack of manpower. The need for manpower is well illustrated by events following each war between Thailand and her neighbours. The victorious side always carried off a large number of people from the conquered territory. Whole villages were often moved into the territory of the conqueror, where they were assimilated and became the population of the conqueror."
David K. Wyatt: "As much as anything else, the Tai
müang was an instrument for the efficient use of manpower in a region where land was plentiful in relation to labor and agricultural technology."
Baker and Phongpaichit argues that, "War in the region
outheast Asiawas... an enterprise to acquire wealth, people, and scarce urban resources."
Bronson states, "No farmers in any region outside southern and eastern Asia could produce as much food with as little labor from the same amount of land."
And Aung-Thwin wrote: "Much of the warfare of early Southeast Asia witnessed the victor carrying off half the population of the vanquished foe and later resettling them on his own soil. Pagan was located in the dry belt of Burma, and depended mainly upon irrigated agriculture for its economic base. Land was plentiful but labor was extremely difficult to obtain."
Dynastic and religious factors
The complete transition from the early Khmer kingdom to the firm establishment of the
Mahidharapura dynasty (first king
Jayavarman VI, 1080 to 1107), which originated west of the
Dângrêk Mountains at
Phimai in the
Mun river
The Mun River (, , ; , ), sometimes spelled ''Moon River'', is a tributary of the Mekong River. It carries approximately of water per year.
Geography
The river begins in the Khao Yai National Park area of the Sankamphaeng Range, near Nakhon R ...
valley lasted several decades. Some historians argue, that these kings failed to acquire absolute central administrative control and had limited access to local resources. The dynasty discontinued "ritual policy" and genealogical traditions. Further momentum ensued as
Mahayana
Mahāyāna ( ; , , ; ) is a term for a broad group of Buddhist traditions, Buddhist texts#Mahāyāna texts, texts, Buddhist philosophy, philosophies, and practices developed in ancient India ( onwards). It is considered one of the three main ex ...
Buddhism
Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and List of philosophies, philosophical tradition based on Pre-sectarian Buddhism, teachings attributed to the Buddha, a wandering teacher who lived in the 6th or ...
was eventually tolerated and several Buddhist kings emerged, including
Suryavarman I,
Rajendravarman II and
Jayavarman VII
Jayavarman VII (), known posthumously as Mahaparamasaugata (, c. 1122–1218), was king of the Khmer Empire. He was the son of King Dharanindravarman II (r. 1150–1160) and Queen Sri Jayarajacudamani.
He was the first king devoted to Buddhism, ...
.
These rulers were not considered, and did not consider themselves, as divine, which lead to a shift in perception of royal authority, central power and a loss of dynastic prestige with respect to foreign rulers. Effectively the royal subjects were given permission to re-direct attention and support from the Hindu state of military dominance with its
consecrated
Sacred describes something that is dedicated or set apart for the service or worship of a deity; is considered worthy of spiritual respect or devotion; or inspires awe or reverence among believers. The property is often ascribed to objects (a ...
leader, the ''"Varman"''—protector king, towards the inner-worldly alternative with the contradictory teachings of the Buddhist temple.
Indravarman III (c. 1295-1308) adopted
Theravada Buddhism
''Theravāda'' (; 'School of the Elders'; ) is Buddhism's oldest existing school. The school's adherents, termed ''Theravādins'' ( anglicized from Pali ''theravādī''), have preserved their version of the Buddha's teaching or '' Dhamma'' in ...
as the state religion, which implied an even more passive, introverted focus towards individual and personal responsibility to accumulate merit to achieve
nirvana
Nirvana, in the Indian religions (Jainism, Hinduism, Buddhism, and Sikhism), is the concept of an individual's passions being extinguished as the ultimate state of salvation, release, or liberation from suffering ('' duḥkha'') and from the ...
.
Miriam T. Stark argues that competition and rivalries in royal succession, usurpers and "second grade" rulers characterised the kingdom since the 9th century. Periods of "...consolidation alternated with political fragmentation
sonly few rulers were able to wrest control from the provincial level".
Debate remains on the progress of the imperial society as the kingdom grew and occupied foreign lands. Authors present numerous theories about the relationship between Southeast Asian kings and the populace's loyalties, nature and degree of identity, the
Mandala
A mandala (, ) is a geometric configuration of symbols. In various spiritual traditions, mandalas may be employed for focusing attention of practitioners and adepts, as a spiritual guidance tool, for establishing a sacred space and as an aid ...
concept and the effects of changing state-religion. Scholar
Ben Kiernan
Benedict F. "Ben" Kiernan (born 29 January 1953) is an Australian-born American historian who is the Whitney Griswold Professor Emeritus of History, Professor of International and Area Studies and Director of the Genocide Studies Program at Yale ...
highlights a tendency to identify with a universal religion rather than to adhere to the concept of a people or nation, as he refers to author Victor Lieberman in: ''Blood and Soil: Modern Genocide 1500-2000'' "
ocal courts make..no formal demand, that rulers be of the same ethnicity as their subjects"
Environmental problems and infrastructural breakdown
Historians increasingly maintain the idea that decline was caused by progressing ecological imbalance of the delicate irrigation network and canal system of "...a profoundly ritualized, elaborate system of hydraulic engineering..." at Angkor's
Yasodharapura. Recent studies indicate that the irrigation system was overworked and gradually started to silt up, amplified by large scale deforestation. Permanent monument construction projects and maintenance of temples instead of canals and dykes put an enormous strain on the royal resources and drained thousands of slaves and common people from the public workforce and caused tax deficits.
Author Heng L. Thung addressed common sense in "Geohydrology and the decline of Angkor" as he sums things up: "...the preoccupation of the Khmers with the need to store water for the long dry season. Each household needed a pond to provide drinking and household water for both man and beast. The barays
eservoirsof Angkor were simply the manifestation of the need of an urban population. Water was the fountain of life for Angkor; a disruption in its supply would be fatal."
Recent
Lidar
Lidar (, also LIDAR, an acronym of "light detection and ranging" or "laser imaging, detection, and ranging") is a method for determining ranging, ranges by targeting an object or a surface with a laser and measuring the time for the reflected li ...
(Light detection and ranging) Geo-Scans of Angkor have produced new data, that have caused several "Eureka moments" and "have profoundly transformed our understanding of urbanism in the region of Angkor". Results of
dendrochronological studies imply prolonged periods of drought between the 14th and 15th centuries. As a result, recent re-interpretations of the epoch put greater emphasis on human–environment interactions and the ecological consequences.
Growth of international maritime trade
Some historians have argued that an important reason for the Angkor court's move to the lower Mekong Delta was due to the growth of international maritime trade with the rest of the world. Angkor, being primarily inland and largely agricultural, became increasingly irrelevant to the global markets in comparison to the later maritime Cambodian capitals at Longvek, Oudong, and later Phnom Penh.
Chaktomuk era
Following the abandonment of the capital
Yasodharapura and the Angkorian sites, the Angkor elites established a new capital around two-hundred kilometres to the south-east on the site which is modern day
Phnom Penh
Phnom Penh is the Capital city, capital and List of cities and towns in Cambodia, most populous city of Cambodia. It has been the national capital since 1865 and has grown to become the nation's primate city and its political, economic, industr ...
, at the confluence of the
Mekong
The Mekong or Mekong River ( , ) is a transboundary river in East Asia and Southeast Asia. It is the world's twelfth-longest river and the third-longest in Asia with an estimated length of and a drainage area of , discharging of wat ...
and the
Tonle Sap river. Thus, it controlled the river commerce of the Khmer heartland, upper Siam and the
Laotian kingdoms with access, by way of the
Mekong Delta
The Mekong Delta ( or simply ), also known as the Western Region () or South-western region (), is the list of regions of Vietnam, region in southwestern Vietnam where the Mekong, Mekong River River delta, approaches and empties into the sea th ...
, to the international
trade routes
A trade route is a Logistics, logistical network identified as a series of pathways and stoppages used for the commercial transport of cargo. The term can also be used to refer to trade over land or water. Allowing Good (economics and accounting ...
that linked the Chinese coast, the
South China Sea
The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by South China, in the west by the Indochinese Peninsula, in the east by the islands of Taiwan island, Taiwan and northwestern Philippines (mainly Luz ...
, and the
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or approximately 20% of the water area of Earth#Surface, Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia (continent), ...
. Unlike its inland predecessor, this society was more open to the outside world and relied mainly on commerce as the source of wealth. The adoption of maritime trade with China during the
Ming dynasty
The Ming dynasty, officially the Great Ming, was an Dynasties of China, imperial dynasty of China that ruled from 1368 to 1644, following the collapse of the Mongol Empire, Mongol-led Yuan dynasty. The Ming was the last imperial dynasty of ...
(1368–1644) provided lucrative opportunities for members of the Cambodian elite who controlled royal trading monopolies.
Historians consent that as the capital ceased to exist, the temples at Angkor remained as central for the nation as they always had been.
David P. Chandler: "The 1747 inscription is the last extensive one at Angkor Wat and reveals the importance of the temple in Cambodian religious life barely a century before it was "discovered" by the French."
Longvek era

King Ang Chan I (1516–1566) moved the capital from Phnom Penh north to
Longvek at the banks of the
Tonle Sap river. Trade was an essential feature and "''...even though they appeared to have a secondary role in the
Asian commercial sphere in the 16th century, the Cambodian ports did indeed thrive.''" Products traded there included
precious stones
A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or polished, is used to make jewellery, jewelry or other adornments. Certain Rock (geology), rocks (such ...
,
metal
A metal () is a material that, when polished or fractured, shows a lustrous appearance, and conducts electrical resistivity and conductivity, electricity and thermal conductivity, heat relatively well. These properties are all associated wit ...
s,
silk
Silk is a natural fiber, natural protein fiber, some forms of which can be weaving, woven into textiles. The protein fiber of silk is composed mainly of fibroin and is most commonly produced by certain insect larvae to form cocoon (silk), c ...
,
cotton
Cotton (), first recorded in ancient India, is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus '' Gossypium'' in the mallow family Malvaceae. The fiber is almost pure ...
,
incense
Incense is an aromatic biotic material that releases fragrant smoke when burnt. The term is used for either the material or the aroma. Incense is used for aesthetic reasons, religious worship, aromatherapy, meditation, and ceremonial reasons. It ...
,
ivory
Ivory is a hard, white material from the tusks (traditionally from elephants) and Tooth, teeth of animals, that consists mainly of dentine, one of the physical structures of teeth and tusks. The chemical structure of the teeth and tusks of mamm ...
,
lacquer
Lacquer is a type of hard and usually shiny coating or finish applied to materials such as wood or metal. It is most often made from resin extracted from trees and waxes and has been in use since antiquity.
Asian lacquerware, which may be c ...
,
livestock
Livestock are the Domestication, domesticated animals that are raised in an Agriculture, agricultural setting to provide labour and produce diversified products for consumption such as meat, Egg as food, eggs, milk, fur, leather, and wool. The t ...
(including
elephant
Elephants are the largest living land animals. Three living species are currently recognised: the African bush elephant ('' Loxodonta africana''), the African forest elephant (''L. cyclotis''), and the Asian elephant ('' Elephas maximus ...
s), and
rhinoceros horn.
First contact with the West
Messengers of
Portuguese admiral
Admiral is one of the highest ranks in many navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force. Admiral is ranked above vice admiral and below admiral of ...
Alfonso de Albuquerque
Afonso de Albuquerque, 1st Duke of Goa ( – 16 December 1515), was a Portuguese general, admiral, statesman and Conquistador, ''conquistador''. He served as List of governors of Portuguese India, viceroy of Portuguese India from 1509 to 1515, d ...
, conqueror of
Malacca
Malacca (), officially the Historic State of Malacca (), is a States and federal territories of Malaysia, state in Malaysia located in the Peninsular Malaysia#Other features, southern region of the Malay Peninsula, facing the Strait of Malacca ...
arrived in
Indochina
Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...
in 1511, the earliest documented official contact with European
sailor
A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. While the term ''sailor'' ...
s. By the late sixteenth and early seventeenth centuries, Longvek maintained flourishing communities of
Chinese,
Indonesians
Indonesians (Indonesian language, Indonesian: ''orang Indonesia'') are citizens or people who are identified with the country of Indonesia, regardless of their ethnic or religious background. There are more than Ethnic groups in Indonesia, 1,300 ...
,
Malays,
Japanese,
Arabs
Arabs (, , ; , , ) are an ethnic group mainly inhabiting the Arab world in West Asia and North Africa. A significant Arab diaspora is present in various parts of the world.
Arabs have been in the Fertile Crescent for thousands of yea ...
,
Spaniards
Spaniards, or Spanish people, are a Romance-speaking ethnic group native to the Iberian Peninsula, primarily associated with the modern nation-state of Spain. Genetically and ethnolinguistically, Spaniards belong to the broader Southern a ...
,
English,
Dutch and
Portuguese traders.
Christian mission
A Christian mission is an organized effort to carry on evangelism, in the name of the Christian faith. Missions involve sending individuals and groups across boundaries, most commonly geographical boundaries. Sometimes individuals are sent and a ...
ary activities began in 1555 with Portuguese clergyman
friar
A friar is a member of one of the mendicant orders in the Catholic Church. There are also friars outside of the Catholic Church, such as within the Anglican Communion. The term, first used in the 12th or 13th century, distinguishes the mendi ...
Gaspar da Cruz,
the first to set foot in the Kingdom of Cambodia, who "''...wasn’t able to spread the word of God and he was seriously ill
ic''" Subsequent attempts did not yield any results that could substantiate a
congregation.
Military resurgence and fall
Cambodia was a potent rival of the Ayutthaya Kingdom in the 16th century. Following the Burmese subjugation of Ayutthaya in 1569, Cambodia launched numerous military expeditions into a weakened Siam between the 1560s and the 1580s. In 1570, Cambodian forces besieged Ayutthaya, but were repulsed by fierce resistance and the rainy season floods. In 1581, Cambodia sacked the Siamese city of
Phetchaburi and emptied the city of its inhabitants.
Meanwhile, in 1572 and 1573-75, the king of
Lan Xang
Lan Xang () or Lancang was a Lao people, Lao kingdom that held the area of present-day Laos from 1353 to 1707. For three and a half centuries, Lan Xang was one of the largest kingdoms in Southeast Asia. The kingdom is the basis for Laos's nat ...
sent two invasions to subjugate Longvek. Both invasions ended in complete failure and the Lan Xang king was assumed to have died in the conflict.
In retribution for multiple Longvek raids on Ayutthaya, in 1587, Cambodia was attacked by the Siamese Crown Prince
Naresuan
Naresuan (1555/1556 – 25 April 1605), commonly known as Naresuan the Great, or Sanphet II was the 18th Monarchy of Thailand, king of the Ayutthaya Kingdom and 2nd monarch of the List of monarchs of Thailand#Sukhothai dynasty (1569–1629), S ...
, who failed to besiege the city of Longvek. In 1594, Longvek was successfully captured and sacked by Siamese forces and Cambodian royals were taken hostage and relocated to the court of Ayutthaya.
The initially fortunate circumstances of some members of the Longvek royal family, managing to seek refuge at the Lao court of
Vientiane
Vientiane (, ) is the capital city, capital and largest city of Laos. Situated on the banks of the Mekong, Mekong River at the Thailand, Thai border, it comprises the five urban districts of Vientiane Prefecture and had a population of 840,000 ...
, ended tragically. The refugees never returned to demand their claims. Their sons, born and raised in Lan Xang, were alienated and while "moderately" manipulated, engaged in local court politics with the exiled Cambodians in Ayutthaya and had the ruling vassal King
Ram I, who was of lower birth, killed with the help of Spanish and Portuguese sailors.
Shortly after they were killed and defeated in the
Cambodian–Spanish War, with foreign hands—
Malays and
Chams
The Chams ( Cham: , چام, ''cam''), or Champa people ( Cham: , اوراڠ چمڤا, ''Urang Campa''; or ; , ), are an Austronesian ethnic group in Southeast Asia and are the original inhabitants of central Vietnam and coastal Cambodia be ...
—involved. This pattern of royal indignity is noticeable in its continuity during the 17th, 18th and 19th centuries, the
Vietnam
Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...
ese court in Hue joining in as yet another stage of royal drama. Royal contender's quarrels often prevented any chance of restoring an effective King of competitive authority for decades.
Srey Santhor era
Kings Preah Ram I and
Preah Ram II moved the capital several times and established their royal capitals at
Tuol Basan (Srey Santhor) around 40 kilometres north-east of Phnom Penh, later
Pursat,
Lavear Em and finally Oudong. In 1596 Spanish and Portuguese conquistadores from
Manila
Manila, officially the City of Manila, is the Capital of the Philippines, capital and second-most populous city of the Philippines after Quezon City, with a population of 1,846,513 people in 2020. Located on the eastern shore of Manila Bay on ...
raided and razed Srei Santhor.
Lvea Aem era
In 1618, King
Chey Chettha II stopped sending tribute to Ayutthaya and reasserted Cambodian independence. A Siamese expedition in 1621-22 to reconquer Cambodia failed in dramatic fashion.
Oudong era
By the 17th and 18th centuries, Siam and Vietnam increasingly fought over control of the fertile Mekong basin, enhancing pressure on an unstable Cambodia. The 17th century was also the beginning of direct relations between post-Angkor Cambodia and Vietnam, that is the war between
Nguyễn lords
The Nguyễn lords (, 主阮; 1558–1777, 1780–1802), also known as the Nguyễn clan (; ), were Nguyễn dynasty's forerunner and a feudal noble clan ruling southern Đại Việt in the Revival Lê dynasty. The Nguyễn lords were membe ...
who ruled central and southern Vietnam and
Trịnh lords Trịnh is a Vietnamese family name
In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full na ...
in the north.
Henri Mouhot: "Travels in the Central Parts of Indo-China" 1864
However, Cambodia remained economically significant in the early part of the Oudong period. In the 17th century, the Japanese considered Cambodia to be a more important maritime power than Siam.
Loss of the Mekong Delta
By the late 15th century, the Vietnamese—descendants of the
Sinic civilisation sphere—had conquered some of the territories of the principalities of
Champa
Champa (Cham language, Cham: ꨌꩌꨛꨩ, چمڤا; ; 占城 or 占婆) was a collection of independent Chams, Cham Polity, polities that extended across the coast of what is present-day Central Vietnam, central and southern Vietnam from ...
. Some of the surviving
Chams
The Chams ( Cham: , چام, ''cam''), or Champa people ( Cham: , اوراڠ چمڤا, ''Urang Campa''; or ; , ), are an Austronesian ethnic group in Southeast Asia and are the original inhabitants of central Vietnam and coastal Cambodia be ...
began their
diaspora
A diaspora ( ) is a population that is scattered across regions which are separate from its geographic place of birth, place of origin. The word is used in reference to people who identify with a specific geographic location, but currently resi ...
in 1471, many re-settling in
Khmer territory. However, the Cambodian Chronicle does not mention the Cham arrival in Cambodia until the 17th century. The last remaining principality of Champa, Panduranga, survived until 1832.
Traditional view
In 1620 the Vietnamese on their
southwards expansion (Nam tiến) had reached the
Mekong Delta
The Mekong Delta ( or simply ), also known as the Western Region () or South-western region (), is the list of regions of Vietnam, region in southwestern Vietnam where the Mekong, Mekong River River delta, approaches and empties into the sea th ...
, a hitherto Khmer domain. Also in 1620 the
Khmer king Chey Chettha II (1618–28) married a daughter of lord
Nguyễn Phúc Nguyên, one of the
Nguyễn lords
The Nguyễn lords (, 主阮; 1558–1777, 1780–1802), also known as the Nguyễn clan (; ), were Nguyễn dynasty's forerunner and a feudal noble clan ruling southern Đại Việt in the Revival Lê dynasty. The Nguyễn lords were membe ...
, who held sway over southern Vietnam for most of the
Lê dynasty
The Lê dynasty, also known in historiography as the Later Lê dynasty (, chữ Hán: 朝後黎, chữ Nôm: 茹後黎), officially Đại Việt (; Chữ Hán: 大越), was the longest-ruling List of Vietnamese dynasties, Vietnamese dynasty, h ...
era from 1428 to 1788. Three years later, king Chey Chettha allowed Vietnam to establish a custom-post at
Prey Nokor, modern day
Ho Chi Minh City
Ho Chi Minh City (HCMC) ('','' TP.HCM; ), commonly known as Saigon (; ), is the most populous city in Vietnam with a population of around 14 million in 2025.
The city's geography is defined by rivers and canals, of which the largest is Saigo ...
. Vietnam after gaining independence from the Chinese now instituted its own version of the frontier policies of the Chinese empire and by the end of the 17th century, the region was under full Vietnamese administrative control. Cambodia's access to international sea trade was now hampered by Vietnamese taxes and permissions.
Contrary views
The story of a Cambodian king falling in love with a Vietnamese princess, who requested and obtained
Kampuchea Krom, the
Mekong Delta
The Mekong Delta ( or simply ), also known as the Western Region () or South-western region (), is the list of regions of Vietnam, region in southwestern Vietnam where the Mekong, Mekong River River delta, approaches and empties into the sea th ...
for Vietnam is
folklore
Folklore is the body of expressive culture shared by a particular group of people, culture or subculture. This includes oral traditions such as Narrative, tales, myths, legends, proverbs, Poetry, poems, jokes, and other oral traditions. This also ...
, dismissed by scholars and not even mentioned in the
Royal Chronicles.
In the process of re-interpretation of the royal records and their rather doubtful contents, Michael Vickery again postulates that future publications take these contradicting facts into account: "First, the very concept of a steady Vietnamese "Push to the South" (nam tiến) requires rethinking. It was not steady, and its stages show that there was no continuing policy of southward expansion. Each move was ad hoc, in response to particular challenges..."
Vickery additionally argues that Cambodia was never "cut off from maritime access to the outside world" in the 17th century, as argued by
David Chandler.
Mid 17th century–19th century
In 1642 Cambodian prince
Ponhea Chan became king after overthrowing and assassinating king Outey. Malay Muslim merchants in Cambodia helped him in his takeover, and he subsequently converted to Islam from Buddhism, changed his name to
Ibrahim, married a Malay woman and reigned as Ramathipadi I. His reign marked the historical
apogee of
Muslim
Muslims () are people who adhere to Islam, a Monotheism, monotheistic religion belonging to the Abrahamic religions, Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God ...
rule in mainland
Southeast Asia
Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...
.
Ramathipadi defeated the
Dutch East India Company
The United East India Company ( ; VOC ), commonly known as the Dutch East India Company, was a chartered company, chartered trading company and one of the first joint-stock companies in the world. Established on 20 March 1602 by the States Ge ...
in naval engagements of the
Cambodian–Dutch War during 1643 and 1644. Pierre de Rogemortes, the ambassador of the Company was killed alongside a third of his 432 men and it was not until two centuries later that Europeans played any important and influential role in Cambodian affairs. In the 1670s the Dutch left all the trading posts they had maintained in Cambodia after the massacre in 1643. The first Vietnamese military intervention took place in 1658-59, in which rebel Cambodian princes, Ibrahim Ramathipadi's own brothers, had requested military support to depose the Muslim ruler and restore Buddhism.
Siam, which might otherwise have been courted as an ally against Vietnamese incursions in the 18th century, was itself involved in prolonged conflicts with Burma and in 1767 the Siamese capital of
Ayutthaya
Ayutthaya, Ayudhya, or Ayuthia may refer to:
* Ayutthaya Kingdom, a Thai kingdom that existed from 1350 to 1767
** Ayutthaya Historical Park, the ruins of the old capital city of the Ayutthaya Kingdom
* Phra Nakhon Si Ayutthaya province (locall ...
was completely destroyed. However, Siam recovered and soon reasserted its dominion over Cambodia. The youthful Khmer king
Ang Eng (1779–96) was installed as monarch at Oudong while Siam annexed Cambodia's
Battambang
Battambang (, Romanization of Khmer#UNGEGN, UNGEGN: ) is the capital of Battambang province and the List of cities and towns in Cambodia, third largest city in Cambodia. The city is situated on the Sangkae River, which winds its way through t ...
and
Siem Reap
Siem Reap (, ) is the second-largest city of Cambodia, as well as the capital and largest city of Siem Reap Province in northwestern Cambodia.
Siem Reap possesses French-colonial and Chinese-style architecture in the Old French Quarter ...
provinces. The local rulers became vassals under direct Siamese rule.
A renewed struggle between Siam and Vietnam for control of Cambodia and the Mekong basin in the early 19th century resulted in Vietnamese dominance over a Cambodian vassal king. Justin Corfield writes in "French Indochina": "
807the Vietnamese expanded their lands by establishing a protectorate over Cambodia. However king
��Ang Duong
Ang Duong ( ; 12 June 1796 – 18 October 1860) was the King of Cambodia from 1848 to his death in 1860. Formally invested in 1848, his rule benefited a kingdom that had suffered from several centuries of royal dissent and decline.
His politics f ...
was keen on Cambodia becoming independent of
..Thailand
..and Vietnam
..and sought help from the
British
British may refer to:
Peoples, culture, and language
* British people, nationals or natives of the United Kingdom, British Overseas Territories and Crown Dependencies.
* British national identity, the characteristics of British people and culture ...
in
Singapore
Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. The country's territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree ...
. When that failed, he enlisted the help of the French."
Attempts to force Cambodians to adopt Vietnamese customs caused several rebellions against Vietnamese rule. The most notable took place from 1840 to 1841, spreading through much of the country.
Siam and Vietnam had fundamentally different attitudes concerning their relationship with Cambodia. The Siamese shared a common religion, mythology, literature, and culture with the Khmer, having adopted many religious and cultural practices. The Thai
Chakri kings followed the
Chakravatin system of an ideal universal ruler, ethically and benevolently ruling over all his subjects.
The Vietnamese enacted a civilising mission, as they viewed the Khmer people as culturally inferior and regarded the Khmer lands as legitimate site for colonisation by settlers from Vietnam.
The territory of the
Mekong Delta
The Mekong Delta ( or simply ), also known as the Western Region () or South-western region (), is the list of regions of Vietnam, region in southwestern Vietnam where the Mekong, Mekong River River delta, approaches and empties into the sea th ...
became a
territorial dispute
A territorial dispute or boundary dispute is a disagreement over the possession (law), possession or control of territories (land, maritime territory, water or airspace) between two or more political entities.
Context and definitions
Territorial ...
between Cambodians and Vietnamese. Cambodia gradually lost control of the Mekong Delta. By the 1860s French colonist had taken over the Mekong Delta and establish the colony of
French Cochinchina.
Nguyen rule
As the Vietnamese empire consolidated itself over the eastern mainland under
Gia Long
Gia Long (Chữ Hán, Chữ hán: 嘉隆) ( (''Hanoi, North''), (''Ho Chi Minh City, South''); 8 February 1762 – 3 February 1820), born Nguyễn Phúc Ánh (阮福暎) or Nguyễn Ánh (阮暎), was the founding emperor of the Nguyễn dynas ...
and
Minh Mang
{{Orphan, date=December 2021
Minh ( Chữ Nôm: 明) is a popular unisex given name of Vietnamese origin, written using the Chinese character (明) meaning "bright", and is also popular among other East Asian names. The Chinese name Ming has the ...
, Cambodia fell to the Vietnamese invasion in 1811. The invasion was initiated by the ruling king, King
Ang Chan II's (r. 1806–35) request to Gia Long to suppress his own brothers,
Ang Snguon and
Ang Em, who were in
rebellion
Rebellion is an uprising that resists and is organized against one's government. A rebel is a person who engages in a rebellion. A rebel group is a consciously coordinated group that seeks to gain political control over an entire state or a ...
against him. The two brothers fled to Thailand, while Ang Chan became a Vietnamese vassal.
In 1820 Gia Long died and his fourth son Minh Mang inherited the throne. Both Minh Mang and his father were strong adherents of Confucianism, but Minh Mang was a sadistic isolationist and strong ruler. He removed the Viceroy of Cambodia and Saigon in 1832, triggered the pro-Catholic
Lê Văn Khôi revolt
The Lê Văn Khôi revolt (, 1833–1835) was an important revolt in Nguyễn dynasty, 19th-century Vietnam, in which southern Vietnamese, Catholic Church in Vietnam, Vietnamese Catholics, Paris Foreign Missions Society, French Catholic mission ...
against him in 1833. The Thai army, intended to support the rebellion, launched an offensive campaign against the Vietnamese on occupying Cambodia. This led Ang Chan to flee to Saigon, as
Rama III promised to restore the Kingdom of Cambodia and punish the insolence of the Kingdom of Vietnam. In 1834, the rebellion in Southern Vietnam was suppressed, and Minh Mang ordered troops to launch the second invasion of Cambodia. This drove most of the Thai forces to the west and reinstalled Ang Chan as the puppet king in Phnom Penh, later succeeded by his daughter, Queen
Ang Mey (r. 1835–41). Later that year, the
Tây Thành Province was established, the Vietnamese occupied Cambodia result in direct Vietnamese control. For the next six years, the Vietnamese emperor had tried to force the Cambodians to adopt Vietnamese culture by cultural assimilation, a progress that historian
David P. Chandler called ''The Vietnamization of Cambodia.''
The death of Minh Mang in early 1841 halted the Vietnamization of Cambodia. With 35,000 Thai troops, they took advantage of the dire situation in Vietnam, rushed into the Tây Thành Province, and were able to fend off Vietnamese counteroffensives in late 1845. The new Vietnamese emperor,
Thieu Tri, readied to make peace with Siam, and in June 1847 a peace treaty was signed. The Kingdom of Cambodia under
Ang Duong
Ang Duong ( ; 12 June 1796 – 18 October 1860) was the King of Cambodia from 1848 to his death in 1860. Formally invested in 1848, his rule benefited a kingdom that had suffered from several centuries of royal dissent and decline.
His politics f ...
regained its independence after 36 years of brutal Vietnamese occupations and Siamese interventions.
Consequences and conclusions
European colonialism and Anglo-French rivalries
Admiral
Léonard Charner proclaimed the formal annexation of three provinces of Cochinchina into the
French Empire on 31 July 1861, the beginning of the colonial era of France in South-East Asia. France's interference in Indochina was thus a fact and the colonial community pressing to establish a commercial network in the region based on the Mekong river, ideally linking up with the gigantic market of southern China.
Dutch author H.Th. Bussemaker has argued that these French colonial undertakings and acquisitions in the region were mere reactions to or counter-measures against British geo-strategy and economic hegemony. "For the British, it was obvious that the French were trying to undercut British expansionism in India and China by interposing themselves in Indochina. The reason for this frantic expansionism was the hope that the Mekong river would prove to be navigable to the Chinese frontier, which then would open the immense Chinese market for French industrial goods." To save the kingdom's national identity and integrity, King
Ang Duong
Ang Duong ( ; 12 June 1796 – 18 October 1860) was the King of Cambodia from 1848 to his death in 1860. Formally invested in 1848, his rule benefited a kingdom that had suffered from several centuries of royal dissent and decline.
His politics f ...
initiated secret negotiations in a letter to Napoleon III seeking to obtain some agreement of protection with France.
In June 1884, the French governor of
Cochinchina
Cochinchina or Cochin-China (, ; ; ; ; ) is a historical exonym and endonym, exonym for part of Vietnam, depending on the contexts, usually for Southern Vietnam. Sometimes it referred to the whole of Vietnam, but it was commonly used to refer t ...
,
Charles Thomson
Charles Thomson (November 29, 1729 – August 16, 1824) was an Irish-born Founding Father of the United States and secretary of the Continental Congress (1774–1789) throughout its existence. As secretary, Thomson prepared the Journals of the ...
went to
Phnom Penh
Phnom Penh is the Capital city, capital and List of cities and towns in Cambodia, most populous city of Cambodia. It has been the national capital since 1865 and has grown to become the nation's primate city and its political, economic, industr ...
, Norodom's capital, and demanded approval of a treaty with Paris that promised far-reaching changes such as the abolition of slavery, the institution of private land ownership, and the establishment of French résidents in provincial cities. The king reluctantly signed the agreement. The Philaster Treaty of 1874 confirmed French sovereignty over the whole of Cochin China and on 16 November 1887 the
Indo-Chinese Union was established.
Continued debate over Post-Angkor historiography
Archaeology
Archaeology or archeology is the study of human activity through the recovery and analysis of material culture. The archaeological record consists of Artifact (archaeology), artifacts, architecture, biofact (archaeology), biofacts or ecofacts, ...
of Cambodia is considered to be still in its infancy. The introduction of new methods of
geochronology
Geochronology is the science of Chronological dating, determining the age of rock (geology), rocks, fossils, and sediments using signatures inherent in the rocks themselves. Absolute geochronology can be accomplished through radioactive isotopes, ...
such as LIDAR-Scanning and Luminescence dating has revealed new sets and kinds of data and studies on climate—and environmental imbalances have become more numerous in recent years. Reflection of results obviously requires time, as in an article of the US
National Academy of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, NGO, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the ...
of the year 2010, the author complains: "Historians and archaeologists have, with a few notable exceptions only rarely considered the role played by environment and climate in the history of Angkor".
Widely debated remain
historiography
Historiography is the study of the methods used by historians in developing history as an academic discipline. By extension, the term ":wikt:historiography, historiography" is any body of historical work on a particular subject. The historiog ...
,
culturalism and other aspects of the historical sources as wide contradictions suggest. Probably the greatest challenge is to synchronise all research with the conclusions of the neighbouring countries. Delicate issues exist that are rooted in this historical period (border disputes, cultural heritage), which are politically relevant and far from solved. Definitive conclusions with all contributing factors in a reasonable context are clearly future events.
Miriam T. Stark in: "From Funan to Angkor Collapse and Regeneration in Ancient Cambodia"
See also
References
Further reading
*
*
*
*
*
*
*
External links
The Ram Khamhaeng Inscription - The fake that did not come trueWhat the collapse of ancient capitals can teach us about the cities of todayCenter for Southeast Asian Studies JapanCenter for Khmer Studies*
Strange Parallels - Southeast Asia in a Global Context by Victor LiebermanMaritime boundary delimitation in the gulf of Thailand - information on multiple unsolved regional border disputes,dating back to the dark ages
{{DEFAULTSORT:Post-Angkor Period
Khmer Empire by event
History of Cambodia by period
2nd millennium in Cambodia
19th century in Cambodia
18th century in Cambodia
States and territories disestablished in 1863
Dark ages