The Angkorian period lasts from the early ninth century to the early fifteenth century CE.

In terms of cultural accomplishments and political power, this is the golden age of Khmer civilization.

The great temple cities of the Angkorian region, located near the modern town of Siemreab, are a lasting monument to the greatness of Jayavarman II's successors. (Even the Khmer Rouge, who will look on most of their country's past history and traditions with hostility, will adopt a stylized Angkorian temple for the flag of Democratic Kampuchea. A similar motif is found in the flag of the PRK).

The kingdom founded by Jayavarman II also gives modern-day Cambodia, or Kampuchea, its name.

During the early ninth to the mid-fifteenth centuries, it is known as Kambuja, originally the name of an early north Indian state, from which the current forms of the name have been derived.