Proof: Precessions Hidden Secret.
The mystery of precession is possibly the most fascinating proof of an advanced lost civilisation, best summed up by Galileo, the father of observational astronomy,
"But of all other stupendous inventions, what sublimity of mind must have been his who conceived how to communicate his most secret thoughts to any other person, though very far distant either in time or place?
And with no greater difficulty than the various arrangement of two dozen little signs upon paper?
Let this be the seal of all the admirable inventions of man." Galileo Galilei