Ancient cultures around the world spoke of a vast cycle of time with alternating Dark and Golden Ages; Plato called it the Great Year. Most of us were taught that this cycle was just a myth, a fairytale, if we were taught anything about it all. But according to Giorgio de Santillana, former professor of the history of science at MIT, many ancient cultures believed consciousness and history were not linear but cyclical, rising and falling over long periods of time. In their landmark work, Hamlet’s Mill, de Santillana and coauthor Hertha von Dechend, show that the myth and folklore of more than thirty ancient cultures speak of a cycle of time with long periods of enlightenment broken by dark ages of ignorance, indirectly driven by a known astronomical phenomena, the precession of the equinox. This is where it gets interesting.