omewhere in the imagination, at an intersection of the idealized Golden Age and mankind's descent into manifest imperfection, existed the island civilization of Atlantis. This realm of divine origin was ruled from a splendid metropolis in the distant ocean. Its empire, described by a philosopher as "larger than Libya and Asia combined," enjoyed prosperity and great power.In time, driven by overweening ambition, a common theme in antiquity and not unheard of today, Atlantis set out to conquer lands of the Mediterranean. But in a terrible day and night of floods and earthquakes, Atlantis was swallowed by the sea, sinking into...