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Engraving shows the Oracle of Delphi, bathed in shaft of light a top a pedestal and surrounded by cloaked figures, Delphi, Greece. (Photo by Stock Montage/Getty Images)

Engraving shows the Oracle of Delphi, bathed in shaft of light a top a pedestal and surrounded by cloaked figures, Delphi, Greece. (Photo by Stock Montage/Getty Images)