than other types of finds, testify to improvement of food availability and trade (even on long distances: in the 4th century BC trade relations with India were already opened) and the existence of a social structure and labor organization.
Pre-Angkorian era and Angkorian era
During the 3rd, 4th, and 5th centuries, the Indianized states of Funan and its successor, Chenla, coalesced in present-day Cambodia and southwestern Vietnam. For more than 2,000 years, Cambodia absorbed influences from India, passing them on to other Southeast Asian civilizations that are now Thailand and Laos. Little else is known for certain of these polities, however Chinese chronicles and tribute records do make mention of them. The chronicles suggest that after Jayavarman I of Chenla died around 690, turmoil ensued which resulted in division of the kingdom into Land Chenla and Water Chenla which was loosely ruled by weak princes under the dominion of Java.
The Khmer Empire grew out of these remnants of Chenla becoming firmly established in 802 when Jayavarman II (reigned c790-850) declared independence from Java and proclaimed himself a Devaraja. He and his followers instituted the cult of the God-king and began a series of conquests that formed an empire which flourished in the area from the 9th to the 15th centuries. Around the 13th century, monks from Sri Lanka introduced Theravada Buddhism to Southeast Asia. The religion spread and eventually displaced Hinduism and Mahayana Buddhism as the popular religion of Angkor.
The Khmer Empire was Southeast Asia's largest empire during the 12th century. The empire's center of power was Angkor, where a series of capitals was constructed during the empire's zenith. In 2007 an international team of researchers using satellite photographs and other modern techniques concluded that Angkor had been the largest pre-industrial city in the world with an urban sprawl of 1,150 square miles. The city, which could have
