The Khmer Empire was an empire in mainland Southeast Asia, centred on hydraulic cities in what is now northern Cambodia. Known as Kambuja (Old Khmer: កម្វុជ; Khmer: កម្ពុជ) by its inhabitants, it grew out of the former civilisation of Chenla and lasted from 802 to 1431 AD. Historians call this period of Cambodian history the Angkor period, after the empire's most well-known capital, Angkor. The Khmer Empire ruled or vassalised most of Mainland Southeast Asia and stretched as far north as southern China.
The beginning of the Khmer Empire is conventionally dated to 802 AD, when Khmer prince Jayavarman II declared himself chakravartin (lit. 'universal ruler', a title equivalent to 'emperor') in the Phnom Kulen mountains. Although the end of the Khmer Empire has traditionally been marked with the fall of Angkor to the Siamese Ayutthaya Kingdom in 1431 AD, the reasons for the empire's collapse are still debated amongst scholars. Researchers have determined that a period of strong monsoon rains was followed by a severe drought in the region, which caused damage to the empire's hydraulic infrastructure. Variability between droughts and flooding was also a problem, which may have caused residents to migrate southward and away from the empire's major cities.
The site of Angkor is perhaps the empire's most notable legacy, as it was the capital during the empire's zenith. The majestic monuments of Angkor, such as Angkor Wat and the Bayon, bear testimony to the Khmer Empire's immense power and wealth, impressive art and culture, architectural technique, aesthetic achievements, and variety of belief systems that it patronised over time. Satellite imaging has revealed that Angkor's elaborate water management network, during its peak in the 11th to the 13th centuries, was the most extensive pre-industrial urban complex in the world.
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Etymology
Modern scholars often refer to the Empire as the "Khmer Empire" (Khmer: ចក្រភពខ្មែរ) or the "Angkorian Empire" (Khmer: ចក្រភពអង្គរ), the latter after the capital Angkor.
The Empire referred to itself as Kambuja (Sanskrit: កម្ពុជ; Old Khmer: កម្វុជ; Khmer: កម្ពុជ) or Kambujadeśa (Sanskrit: កម្ពុជទេស, lit. 'the country of the sons of Kambu'; Old Khmer: កម្វុជទេឝ; Khmer: កម្ពុជទេស), names which were pre-modern predecessors to the modern Kampuchea.
Historiography
No written records of the Angkor period have survived other than stone inscriptions. Current knowledge of the historical Khmer civilisation is derived primarily from:
Archaeological excavation, reconstruction and investigation
Stone inscriptions (the most important of which are foundation steles of temples), which report on the political and religious deeds of the kings
Reliefs in a series of temple walls with depictions of daily life, market scenes, military marches, and palace life
Reports and chronicles of Chinese diplomats, traders, and travellers
History
Formation and growth
According to an Sdok Kok Thom temple inscription, around 781 the Khmer prince Jayavarman II established Indrapura as the capital of his domain. It was located in Banteay Prey Nokor, near today's Kampong Cham. After returning to his home in the former kingdom of Chenla, he quickly built up his influence and defeated a series of competing kings. In 790 he became king of an empire called Kambuja by the Khmer. He then moved his court northwest to Mahendraparvata, far inland north from the great lake of Tonlé Sap.
Jayavarman II (reigned 802–835) is widely regarded as the king who set the foundations of the Angkor period. According to the Baksei Chamkrong inscription, dated to 947, he was born in the lineage of Rudravarman. Historians generally agree that this period of Cambodian history began in 802, when Jayavarman II conducted a grandiose consecration ritual on the sacred Mount Mahendraparvata, now known as Phnom Kulen. At the ritual, which was taken from the Hindu tradition, Jayavarman II proclaimed himself as chakravartin (from Sanskrit, commonly translated as "universal ruler"; Old Khmer: Kamraten jagad ta Raja) and devaraja (from Sanskrit, lit. 'god king'). He also declared Kambuja's independence from a place inscriptions call "Java".
Historians debate whether "Java" means the Indonesian island of Java, Champa or a different location. According to an older established interpretation, Jayavarman II was a prince who lived at the court of Sailendra in Java and brought back to Cambodia the art and culture of the Javanese Sailendran court (such as the concept of a devaraja). This classical theory was criticised by modern scholars such as Claude Jacques and Michael Vickery, who noted that the Khmer used the term chvea to describe the Chams, their neighbours to the east. But in 2013 Arlo Griffiths refuted these theories and convincingly demonstrated that in almost all cases the inscriptions mention Java they refer to the island of Java in the Indonesian archipelago.
Jayavarman's political career began in Vyadhapura (likely the modern-day ruins of Banteay Prey Nokor) in eastern Cambodia. Moreover, many early temples on Phnom Kulen show Cham (e.g. Prasat Damrei Krap) as well as Javanese influences (e.g. the primitive "temple-mountain" of Aram Rong Cen and Prasat Thmar Dap), even if their asymmetric distribution seems typically Khmer.
In the following years, Jayavarman II extended his territory and established a new capital, Hariharalaya, near the modern-day town of Roluos. He thereby laid the foundation of Angkor, which was to arise some 15 kilometres (9.3 mi) to the northwest. Jayavarman II died in 835 and was succeeded by his son Jayavarman III. Jayavarman III died in 877 and was succeeded by Indravarman I.
Golden age of Khmer civilisation
The Greater Angkor Region had a population of approximately 700,000 to 900,000 at its peak in the 13th century CE. This population made Angkor one of the most populous cities of the medieval world.
The 12th century was a time of conflict and brutal power struggles. Under Suryavarman II (reigned 1113–1150) the empire united internally and Angkor Wat, dedicated to the god Vishnu, was built over a period of 37 years. In the east, Suryavarman II's campaigns against Champa and Dai Viet were unsuccessful, though he sacked Vijaya in 1145 and deposed Jaya Indravarman III. The Khmers occupied Vijaya until 1149, when they were driven out by Jaya Harivarman I. In 1114, Suryavarman II sent a mission to Chola and presented a precious stone to the Chola emperor Kulottunga I.
Another period followed in which kings reigned briefly and were violently overthrown by their successors. Finally, in 1177 the capital was raided and looted in a naval battle on the Tonlé Sap lake by a Cham fleet under Jaya Indravarman IV, and Khmer king Tribhuvanadityavarman was killed.
King Jayavarman VII (reigned 1181–1219) was generally considered Cambodia's greatest king. He had already been a military leader as a prince under the previous kings. After Champa had conquered Angkor, he gathered an army and retook the capital. He consequently ascended to the throne and continued to wage war against Champa for another 22 years, until the Khmer defeated the Chams in 1203 and conquered large parts of their territory. According to Chinese sources, Jayavarman VII added Pegu to the territory of the Khmer Empire in 1195.
Jayavarman VII stands as the last of the great kings of Angkor, not only because of his successful military campaign against Champa, but also because he was not a tyrannical ruler in the manner of his immediate predecessors. He unified the empire and carried out noteworthy building projects. The new capital, now called Angkor Thom (lit. 'great city'), was built. In the centre, the king (himself a follower of Mahayana Buddhism) had constructed as the state temple the Bayon, with towers bearing faces of the boddhisattva Avalokiteshvara, each several metres high, carved out of stone. Further important temples built under Jayavarman VII were Ta Prohm for his mother, Preah Khan for his father, Banteay Kdei, and Neak Pean, as well as the reservoir of Srah Srang. An extensive network of roads was laid down connecting every town of the empire, with rest-houses built for travellers and a total of 102 hospitals established across his realm.
Decline
By the 14th century, Kambuja had suffered a long, arduous, and steady decline. Historians have proposed different causes for the decline: the religious conversion from Vishnuite-Shivaite Hinduism to Theravada Buddhism that affected social and political systems, incessant internal power struggles among Khmer princes, vassal revolt, foreign invasion, plague, and ecological breakdown.
For social and religious reasons, many aspects contributed to the decline of Kambuja. The relationship between the rulers and their elites was unstable – among the 27 rulers of Kambuja, eleven lacked a legitimate claim to power, and violent power struggles were frequent. Kambuja focused more on its domestic economy and did not take advantage of the international maritime trade network. The input of Buddhist ideas also conflicted with and disturbed the state order built under Hinduism.
The last Sanskrit inscription is dated 1327 and describes the succession of Indrajayavarman by Jayavarmadiparamesvara. Historians suspect a connection with the kings' adoption of Theravada Buddhism: the kings were no longer considered devarajas (god kings) and there was therefore no need to erect huge temples to them, or rather to the gods under whose protection they stood. The retreat from the concept of the devaraja may also have led to a loss of royal authority and thereby to a lack of workers. The water-management apparatus also degenerated, meaning that harvests were reduced by floods or drought. While previously three rice harvests per year were possible – a substantial contribution to the prosperity and power of Kambuja – the declining harvests further weakened the empire.
Looking at the archaeological record, however, archaeologists noticed that not only were the structures ceasing to be built, but the Khmer's historical inscription was also lacking from the 14th to 17th centuries. With this lack of historical content, there is very limited archaeological evidence to work with. However, archaeologists have been able to determine that the sites were abandoned and then reoccupied later by different people.
The Ayutthaya Kingdom arose from a confederation of three city-states on the Lower Chao Phraya basin (Ayutthaya-Suphanburi-Lopburi). From the fourteenth century onward, Ayutthaya became the Khmer empire's rival. Angkor was besieged by the Ayutthayan king Uthong in 1352, and following its capture the next year, the Khmer king was replaced with successive Siamese princes. Then in 1357, the Khmer king Suryavamsa Rajadhiraja retook the throne. In 1393, the Ayutthayan king Ramesuan besieged Angkor again, capturing it the next year. Ramesuan's son ruled Kambuja for a short time before being assassinated. Finally, in 1431, the Khmer king Ponhea Yat abandoned Angkor as indefensible, and moved to the Phnom Penh area.
Culture and society
Much of what is known about Kambuja comes from the bas-reliefs of Angkor's temples and the first-hand accounts of Chinese diplomat Zhou Daguan (The Customs of Cambodia), which provide information on 13th-century Cambodia and earlier. The bas-reliefs, such as those in the Bayon, describe everyday life in the ancient Khmer kingdom, including scenes of palace life, naval battles on the river and lakes, and common scenes of the marketplace.
Economy and agriculture
The ancient Khmers were a traditional agricultural community, relying heavily on rice farming. The farmers, who formed the majority of the kingdom's population, planted rice near the banks of the lake or river, in the irrigated plains surrounding their villages, or in the hills when the lowlands were flooded. The rice paddies were irrigated by a massive and complex hydraulics system, including networks of canals and barays, or giant water reservoirs. This system enabled the formation of large-scale rice farming communities surrounding Khmer cities. Sugar palm trees, fruit trees, and vegetables were grown in the orchards by the villages, providing other sources of agricultural produce such as palm sugar, palm wine, coconut, various tropical fruits, and vegetables.
Located by the massive Tonlé Sap lake, and also near numerous rivers and ponds, many Khmer people relied on fresh water fisheries for their living. Fishing gave the population their main source of protein, which was turned into prahok – dried or roasted or steamed fish paste wrapped in banana leaves. Rice was the main staple along with fish. Other sources of protein included pigs, cattle, and poultry, which were kept under the farmers' houses, which were elevated on stilts to protect them from flooding.
There is no clear evidence of monetized transactions during the Angkorian period until the 13th century, as barter was the main system of exchange. Envoy Zhou Daguan recorded in the 13th century on the use of rice, grain and Chinese coins for small transactions, cloth as another medium and lastly, gold and silver for the largest transactions.
The marketplace of Angkor contained no permanent buildings; it was an open square where the traders sat on the ground on woven straw mats and sold their wares. There were no tables or chairs. Some traders might be protected from the sun with a simple thatched parasol. A certain type of tax or rent was levied by officials for each space occupied by traders in the marketplace. The trade and economy in the Angkor marketplace were mainly run by women.
Zhou Daguan's description of the women of Angkor:
The local people who know how to trade are all women. So when a Chinese man goes to this country, the first thing he must do is take in a woman, partly with a view of profiting from her trading abilities.The women age very quickly, no doubt because they marry and give birth when they are too young. When they are twenty or thirty-years-old, they look like Chinese women who are forty or fifty.
Society and politics
Kambuja was founded upon extensive networks of agricultural rice farming communities. A distinct settlement hierarchy is present in the region. Small villages were clustered around regional centres, such as the one at Phimai, which in turn sent their goods to large cities like Angkor in return for other goods, such as pottery and foreign trade items from China. Inscriptions from what is now Sa Kaeo and Prachin Buri, west of the Dângrêk, carry the administrative vocabulary of that hierarchy. Villages and districts are marked by the terms sruk, grāma and viṣaya, and towns are named Vijaya pattana, Bhadhara pattana and Avadhayapura. Patcharaporn Ngernkerd and colleagues read that group of texts as evidence that the northern part of Sa Kaeo was administered directly from Angkor. The king and his officials were in charge of irrigation management and water distribution, which consisted of an intricate series of hydraulics infrastructure, such as canals, moats, and massive reservoirs called barays.
Society was arranged in a hierarchy reflecting the Hindu caste system, where the commoners – rice farmers and fishermen – formed the large majority of the population. The kshatriyas – royalty, nobles, warlords, soldiers, and warriors – formed a governing elite and authorities. Other social classes included brahmins (priests), traders, artisans such as carpenters and stonemasons, potters, metalworkers, goldsmiths, and textile weavers, while on the lowest social level were slaves.
The extensive irrigation projects provided rice surpluses that could support a large population. The state religion was Hinduism but influenced by the cult of Devaraja, elevating the Khmer kings as possessing the divine quality of living gods on earth, attributed to the incarnation of Vishnu or Shiva. In politics, this status was viewed as the divine justification of a king's rule. The cult enabled the Khmer kings to embark on massive architectural projects, constructing majestic monuments such as Angkor Wat and the Bayon to celebrate the king's divine rule on earth.
The King was surrounded by ministers, state officials, nobles, royalties, palace women, and servants, all protected by guards and troops. The capital city of Angkor and the Khmer royal court are famous for grand ceremonies, with many festivals and rituals held in the city. Even when travelling, the King and his entourages created quite a spectacle, as described in Zhou Daguan's accounts. Zhou Daguan's description of a royal procession of Indravarman III is as follows:
Military
According to Zhou Daguan, who stayed in Yaśodharapura from 1296 to 1297, Cambodia had suffered repeated attacks by the people of Xiān, a polity of the western side of the Bay of Bangkok whose identification with the Sukhothai Kingdom has been questioned since 1989, the Chinese records listing Xiān and Sukhothai separately. According to Zhou, the Khmer soldiers fought naked and barefoot, wielding only lance and shield. He did not witness any usage of bows and arrows (although bows and arrow are depicted in bas-relief at the Bayon), trebuchets, body armour, or helmets. When Sukhotai attacked, ordinary people were ordered to face them without strategy or preparation. The Khmer had double bow crossbows mounted on elephants, which Michel JacqHergoualc'h suggests were elements of Cham mercenaries in Jayavarman VII's army.
In terms of fortifications, Zhou described Angkor Thom's walls as being 10 kilometres (6.2 mi) long in circumference with five gateways, each with two gates, surrounded by a large moat spanned by bridges. The walls, which formed an exact square, were made of stone and so tightly packed that no weeds grew from them. The walls were around 6–7 metres in height and sloped from the inside, thick enough to contain chambers, but with no battlements and only a single stone tower on each of the four sides. Guards operated them, but dogs were not allowed on the walls. According to an oral tradition told to Henri Mouhot, Kambuja had a standing army of 5 to 6 million soldiers.
Culture and way of life
Zhou Daguan's description of Khmer houses:
The dwellings of the princes and principal officials have a completely different layout and dimensions from those of the people. All the outlying buildings are covered with thatch; only the family temple and the principal apartment can be covered in tiles. The official rank of each person determines the size of the houses.
Houses of farmers were situated near the rice paddies on the edge of the cities. The walls of the houses were made of woven bamboo, with thatched roofs, and they were on stilts. A house was divided into three rooms by woven bamboo walls. One was the parents' bedroom, another was the daughters' bedroom, and the largest was the living area. Sons slept wherever they could find space. The kitchen was at the back or in a separate room. Nobles and kings lived in the palace and much larger houses in the city. They were made of the same materials as the farmers' houses, but the roofs were wooden shingles and had elaborate designs as well as more rooms.
Zhou Daguan reported that locals do not produce silk or have the ability to stitch and darn with a needle and thread.
None of the locals produces silk. Nor do the women know how to stitch and darn with a needle and thread. The only thing they can do is weave cotton from kapok. Even then they cannot spin the yarn, but just use their hands to gather the cloth into strands. They do not use a loom for weaving. Instead they just wind one end of the cloth around their waist, hang the other end over a window, and use a bamboo tube as a shuttle.
In recent years people from Siam have come to live in Cambodia, and unlike the locals they engage in silk production. The mulberry trees they grow and the silkworms they raise all come from Siam. They themselves weave the silk into clothes made of a black, patterned satiny silk. Siamese women do know how to stitch and darn, so when local people have torn or damaged clothing they ask them to do the mending.
The common people wore a sampot where the front end was drawn between the legs and secured at the back by a belt. Nobles and kings wore finer and richer fabrics. Women wore a strip of cloth to cover the chest, while noble women had a lengthened one that went over the shoulder. Men and women wore a Krama. Along with depictions of battle and the military conquests of kings, the basreliefs of the Bayon depict the mundane everyday life of common Khmer people, including scenes of the marketplace, fishermen, butchers, people playing a chess-like game, and gambling during cockfighting.
Religion
The main religion was Hinduism, followed by Buddhism in popularity. Initially, the kingdom revered Hinduism as the main state religion. Vishnu and Shiva were the most revered deities, worshipped in Khmer Hindu temples. Temples such as Angkor Wat are actually known as Phitsanulok (Vara Vishnuloka in Sanskrit) or the realm of Vishnu, to honour the posthumous King Suryavarman II as Vishnu.
Hindu ceremonies and rituals performed by Brahmins (Hindu priests), usually only held among the ruling elites of the king's family, nobles, and the ruling class. The empire's official religions included Hinduism and Mahayana Buddhism until Theravada Buddhism prevailed, even among the lower classes, after its introduction from Sri Lanka in the 13th century.
Art and architecture
Zhou Daguan's description on the Angkor Royal Palace:
All official buildings and homes of the aristocracy, including the Royal Palace, face the east. The Royal Palace stands north of the Golden Tower and the Bridge of Gold: it is one and a half mile in circumference. The tiles of the main dwelling are of lead. Other dwellings are covered with yellow-coloured pottery tiles. Carved or painted Buddhas decorate all the immense columns and lintels. The roofs are impressive too. Open corridors and long colonnades, arranged in harmonious patterns, stretch away on all sides.
The Angkor Empire produced numerous temples and majestic monuments to celebrate the divine authority of Khmer kings. Khmer architecture reflects the Hindu belief that the temple was built to recreate the abode of Hindu gods, Mount Meru, with its five peaks and surrounded by seas represented by ponds and moats. The early Khmer temples built in the Angkor region and the Bakong temple in Hariharalaya (Roluos) employed stepped pyramid structures to represent the sacred temple-mountain.
Khmer art and architecture reached their aesthetic and technical peak with the construction of the majestic temple Angkor Wat. Other temples are also constructed in the Angkor region, such as Ta Phrom and the Bayon. The construction of the temple demonstrates the artistic and technical achievements of Kambuja through its architectural mastery of stone masonry.
Bronze is an alloy composed primarily of copper and tin. It was a preferred material for representing Hindu and Buddhist deities in Angkor and throughout the Khmer Empire. The Khmer regarded bronze as a noble substance, associated with prosperity and success, and it held cultural significance for many centuries. A bronze statue of Vishnu is considered the "Mona Lisa of Cambodia or the "Venus de Milo of Cambodia". It was discovered in 1936 by Frenchman Maurice Glaize in what was once the West Mebon temple on an island in Angkor's largest pond. The statue is estimated to have been made in the 11th century and would have been between 5-6 metres long.
List of architectural styles during Angkor period:
Relations with regional powers
During the formation of the empire, the Khmer had close cultural, political, and trade relations with Java and with the Srivijaya Empire that lay beyond Khmer's southern seas. In 851 a Persian merchant named Sulaiman al-Tajir recorded an incident involving a Khmer king and a Maharaja of Zabaj. He described the story of a Khmer king who defied the power of Maharaja of Zabaj. It was said that the Javanese Sailendras staged a surprise attack on the Khmers by approaching the capital from the river. The young king was later punished by the Maharaja, and subsequently the kingdom became a vassal of the Sailendra dynasty.
Zabaj is the Arabic form of Javaka and might refer to Java or Srivijaya. The legend probably describes the predecessor or initial stage of the Kambuja under Javanese dominion. The Legend of the Maharaja of Zabaj was later published by the historian Masoudi in his 947 book, "Meadows of Gold and Mines of Gems." The Kaladi inscription of Java (c. 909) mentioned Kmir (Khmer people or Cambodian) together with Campa (Champa) and Rman (Mon) as foreigners from mainland Southeast Asia who frequently came to Java to trade. The inscription suggests a maritime trade network had been established between Kambuja and Java (Mdang kingdom).
In 916 CE, Arab historian Abu Zayd al-Sirafi recorded in a lengthy chronicle that the young, inexperienced king of Khmer, is hostile to Java. When the hostility becomes state policy and is known publicly, the king of Java attacked and captured the Khmer king. He was beheaded and the head brought to Java. The king of Java ordered the minister of Khmer Empire to seek the successor. After being cleaned and embalmed, the head of the king was put in a vase and sent to the new Khmer king.
Throughout its history, the empire also was involved in series of wars and rivalries with the neighbouring kingdoms of Champa, Tambralinga, and Đại Việt – and later in its history with Siamese Sukhothai and Ayutthaya. The Khmer Empire's relations with its eastern neighbour Champa was exceptionally intense, as both sides struggled for domination in the region. The Cham fleet raided Angkor in 1177, and in 1203 the Khmer managed to push back and defeat Champa.
Arab writers of the 9th and 10th century hardly mention the region for anything other than its perceived backwardness, but they considered the king of Al-Hind (India and Southeast Asia) one of the four great kings in the world. The ruler of the Rashtrakuta Dynasty is described as the greatest king of Al-Hind, but even the lesser kings of Al-Hind including the kings of Java, Pagan Burma, and the Khmer kings of Cambodia are invariably depicted by the Arabs as extremely powerful and as being equipped with vast armies of men, horses, and often tens of thousands of elephants. They were also known to have been in possession of vast treasures of gold and silver. The Khmer rulers established relations with the Chola dynasty of South India.



