Antikythera Mechanism

The Antikythera mechanism is a Hellenistic geared bronze device recovered by sponge divers from a shipwreck off the Greek island of Antikythera in 1901, dated to roughly 100 to 150 BCE. Reconstructed from corroded fragments using X-ray tomography, it modeled the positions of the sun, moon, and planets and predicted eclipses through a system of more than thirty interlocking gears. It is the oldest known analog computer and one of the most studied finds in maritime archaeology, recovered alongside bronze statuary and amphorae from a Roman-era cargo wreck.