Fun Fact: In 1902, Greek archaeologist Valerios Stais discovered the Antikythera Mechanism - an ancient analog computer used to predict astronomical positions and eclipses. The artifact dates back to the 2nd century BC and is considered the oldest known geared device.by johnataylor on TwosFun Fact: In 1902, Greek archaeologist Valerios Stais discovered the Antikythera Mechanism - an ancient analog computer used to predict astronomical positions and eclipses. The artifact dates back to the 2nd century BC and is considered the oldest known geared device.