Lost ancient civilizations built structures all over the earth that align to specific constellations in the heavens and show evidence of advanced technology used to build them. Ancient man used the movements of the heavens like a grand celestial clock and built monuments to mark where they were in this larger cycle of time that we today call the precession of the equinox. See the artifacts and evidence that ancient man possessed advanced understating of mathematics, astronomy and science much further back then modern science academics currently recognize. Possibly 10-15,000 B.C. evidence of a lost ancient technological civilization.
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