The Khmer Empire or Angkor Empire (Khmer: ចក្រភពអង្គរ, "Chăkrâphôp Ângkô" are the terms that historians use to refer to Cambodia from the 9th century to the 15th century when the nation was a Hindu/Buddhist empire in Southeast Asia. The empire referred to itself as Kambuja or Kambujadeśa which are ancient terms for Cambodia. The empire grew out of the former civilizations of Funan and Chenla, and at times ruled over and/or vassalized most of mainland Southeast Asia and parts of Southern China, its control stretching from the tip of the Indochinese Peninsula northward to modern Yunnan province, China, and from Vietnam westward to Myanmar.