Map of Southeast Asia circa 1400 CE, showing Khmer Empire in red, Ayutthaya Kingdom in violet, Lan Xang kingdom in teal, Sukhothai kingdom in orange, Champa in yellow, Kingdom of Lanna in purple, Dai Viet in blue and surrounding states.
Map-of-southeast-asia 1400 CE.pngMap-of-southeast-asia 900 CE-es.svghttp://ecaimaps.berkeley.edu/animations/2003_03_khmer_animation.swf http://www.britannica.com/EBchecked/media/3395/Khmer-empire-1200 Atlas of world history, Patrick Karl O'brien. Societies, Networks, and Transitions: A Global History, Volume B. Craig A.Lockard http://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Srivijaya_Empire.svg/2000px-Srivijaya_Empire.svg.png File:DvaravatiMapThailand.png

http://upload.wikimedia.org/wikipedia/commons/e/eb/Thailand_2002_CIA_map.jpg
Map-of-southeast-asia 1400 CE.png: Javierfv1212
Map-of-southeast-asia 900 CE-es.svg: Rowanwindwhistler
derivative work: Rowanwindwhistler (talk)