One of the most mysterious of all archeological artifacts is what is known as the Antikythera Mechanism, a bronze machine that was discovered by divers off the coast of the Greek island of Antikythera in the early 1900s. The mechanism consists of a series of over 30 gears, cranks, and dials that could be manipulated in order to chart the astronomical positions of the sun, moon, and other planets. The device was found among the remains of a shipwreck that scientists have dated to the 1st or 2nd century BC. Its true purpose is still not fully known, and the mystery behind its construction and use has puzzled researchers for years. The consensus now seems to be that the Antikythera Mechanism was a kind of primitive clock that could calculate lunar phases and solar years, which has led some to refer to it as the earliest example of an “analog computer.”
