The world’s oldest computer predates Bill Gates only by about 2,000 years. In fact, the absolutely mind-boggling Antikythera Mechanism – a corroded clocklike object found among the ruins of a sunken ship – may prove that advanced scientific technology existed far earlier than we ever thought possible. Scientists have since discovered that this mysterious Greek invention predicted solar eclipses, organized the calendar in four-year cycles, and may well be linked to renowned astrologer and engineer Archimedes. Though no other such mechanisms have ever been found, experts believe that many more made around the same time in 100 B.C.E. once existed.