At about the time that the ancient peoples of Western Europe were absorbing the classical culture and institutions of the Mediterranean, the peoples of mainland and insular Southeast Asia were responding to the stimulus of a civilization that had arisen in northern India during the previous millennium. The Britons, Gauls, and Iberians experienced Mediterranean influences directly, through conquest by and incorporation into the Roman Empire. In contrast, the Indianization of Southeast Asia was a slower process than the Romanization of Europe because there was no period of direct Indian rule and because land and sea barriers that separated the region from the Indian subcontinent are considerable. Nevertheless, Indian religion, political thought, literature, mythology, and artistic motifs gradually became integral elements in local Southeast Asian cultures. The caste system never was adopted, but Indianization stimulated the rise of highly-organized, centralized states.

Funan, the earliest of the Indianized states, generally is considered by Cambodians to have been the first Khmer kingdom in the area. Founded in the first century A.D., Funan was located on the lower reaches of the Mekong River in the delta area. Its capital, Vyadhapura, probably was located near the present-day town of Phumi Banam in Prey Veng Province. The earliest historical reference to Funan is a Chinese description of a mission that visited the country in the third century A.D. The name Funan derives from the Chinese rendition of the old Khmer word bnam (meaning mountain). What the Funanese called themselves, however, is not known.

During this early period in Funan's history, the population was probably concentrated in villages along the Mekong River and along the Tonle Sab River below the Tonle Sap. Traffic and communications were mostly waterborne on the rivers and their delta tributaries. The area was a natural region for the development of an economy based on fishing and rice cultivation. There is considerable evidence that the Funanese economy depended on rice surpluses produced by an extensive inland irrigation system. Maritime trade also played an extremely important role in the development of Funan. The remains of what is believed to have been the kingdom's main port, Oc Eo (now part of Vietnam), contain Roman as well as Persian, Indian, and Greek artifacts.

By the fifth century A.D., the state exercised control over the lower Mekong River area and the lands around the Tonle Sap. It also commanded tribute from smaller states in the area now comprising northern Cambodia, southern Laos, southern Thailand, and the northern portion of the Malay Peninsula.

Indianization was fostered by increasing contact with the subcontinent through the travels of merchants, diplomats, and learned Brahmans (Hindus of the highest caste traditionally assigned to the priesthood). Indian immigrants, believed to have arrived in the fourth and the fifth centuries, accelerated the process. By the fifth century, the elite culture was thoroughly Indianized. Court ceremony and the structure of355 of political institutions were based on Indian models. The Sanskrit language was widely used the laws of Manu, the Indian legal code, were adopted and an alphabet based on Indian writing systems was introduced.

Funan reached its zenith in the fifth century A.D.. Beginning in the early sixth century, civil wars and dynastic strife undermined Funan's stability, making it relatively easy prey to incursions by hostile neighbors. By the end of the seventh century, a northern neighbor, the kingdom of Chenla, had reduced Funan to a vassal state.

Data as of December 1987