In 1938 a team of archaeologists, Led by professor Chi Pu Tei from the Beijing university, found in a series of interlinked caves, the remains of a species of very little people about 4 feet tall. Besides the remains they found 714 stone disks artificially carved with some kind of unknown tool. The team observed that the caves, found in the district of Baian Kara-Ula, had been artificially cut out of the mountain. On closer inspection they found that the stones had a kind of groove going from the inside of the stone to the outside of the stone. (Somewhat like our gramophone records have a groove going from the outside to the hole on the inside)
Later still, they discovered that the groove was a writing with unknown characters.
When the cipher was translated they told of a people who crashed here with a spacecraft and were unable to fix it. Stranded on this planet they painted a part of their story on the walls of their caves and recorded their story on the plates or records.
You don't have to take my word for it, do look into it yourself and make up your own mind.
But first get all the facts, and remember that they lied about every bit of important information.