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According to my great-grandfather, James Churchward, the Great Uighur Empire (see map above) was the principal colony of the lost continent of Mu and was thousands of years old at it's height some 17,000 years ago. The fact that artifacts of such age have been discovered in the vicinity provides hope that evidence of the Great Uighur Empire has been found.
Of course, further study and research is necessary to show a link between the ancient Uighurs and the people that inhabited this area and many patiently await the confirmation.
Have a great day.