The rise and Decline Of The Khmer Empire By ella.duyvestyn 1431 BCE Thais sack Angkor and it is ABANDONED by the Khmer rulers. Period: Apr 27, 800 to Apr 27, 1500 The Rise and Fall of the Khmer empire Apr 26, 802 The Khmer Empire is Founded (802-835) Jayavarman II Founds the Khmer Empire Apr 27, 889 Yman constructed a new capitol and resivoir (889-900) Dec 24, 889 Yman Moves the Khmer capital to the Angkor area. Apr 28, 944 Rman reign's (944-968) Khmer's had their first war Apr 27, 968 Jman reigns the khmer court (968- 1001) The Khmer court becomes the centre of scholars &artists Dec 24, 1113 Sman II builds Angkor Wat Dec 24, 1238 Thais rebel against Khmer rule and found a kingdom at Sokhothai