Tired: aliens made the great pyramids of Egypt

Wired: ancient Egypt achieved interstellar flight early. a subpopulation left Earth to colonize new planets. unknown to the space colonies, who are now thousands of light years away, the people of earth endured a series of wars, famines, and dictatorships that sought to trample scientific advances and historical records. The conspiring kings repurposed the pyramids as their tombs. tucked away is old data on FTL, but we lack the hardware to read th