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History

The Antikythera Mechanism: An Ancient Computer and Its Mysteries

Quick fact

The Antikythera Mechanism's 30+ bronze gears are so advanced that historians believe their technology wasn't replicated until the 14th century.

Why this is interesting

You've probably seen a wristwatch with a calendar—but what if a device from 150 BC could predict eclipses and track the Olympic Games? The ancient Greeks built exactly that, an intricate bronze computer found at the bottom of the sea.