Antikythera Mechanism by  Unknown Artist

Title:Antikythera Mechanism
Owner:National Archaeological Museum of Athens
Country of Origin:Greece
Date of Creation:125 BC
Tags:Ancient Greece
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This mechanism was analyzed in 2009-2010 using various imaging techniques and 3D-modeling to reproduce its structure. The report states the following:

"Using nothing but an ingenious system of gears, the mechanism could be used to predict the month, day and hour of an eclipse, and even accounted for leap years. It could also predict the positions of the sun and moon against the zodiac, and has a gear train that turns a black and white stone to show the moon's phase on a given date. It is possible that it could also show the astronomical positions of the planets known to the ancients: Mercury, Venus, Mars, Jupiter and Saturn." A small dial also showed the dates of cultural events, like the olympic games.