The ancient city of  Khorat Plateau is considered to be the cradle of Lao culture and cuisine, with its influences stretching from Sipsongpanna to Steung Treng.
At the height of its power, Luang Prabang's influence stretches from the borders of Sipsongpanna (China) to Steung Treng (Cambodia), from the eastern border along the Annamite Range with Vietnam to the western border Khorat Plateau (Northeastern Thailand (Isan)) and its sister kingdom of Lan Na 
