Thank you. Two points: Spelling of Rohingya and with the Khmer Empire, as Empire is in the question, why do want us to write it? Please accept just "Khmer".
Thank you very much for your feedback. For the spelling of Rohingya I have no excuse, of course you're correct and it have been changed now. And for the Khmer Empire, Khmer should as you've pointer out also be a valid answer, which has been added now. Again I apologize for my spelling and thank you for you're input.