THIS is The Antikythera Mechanism.
Someone found this thing on a ancient Roman merchant ship that wrecked off the coast of Greece in 1900. Can you imagine? Capt. Ahab pulls up a giant piece of metal off the oceans floor and see this? Nuts.
They call it the ''Mechanism'' because no one knows what the hell it is. It's some kind of geared device with 30 parts that moved at some point. I know what you're thinking... it's a big clock. Whoop-de-doo! Except it's from around 100BC which predates clocks by about a millennium. Just to give you an idea of what life was like in that time period, this is when Julius Caesar was a little baby, the Mayans were in full swing in Guatemala and when Spartacus enjoyed his heyday.
Zodiac symbols are found on the mechanism so the common belief is that it was used in astrology there is still much to understand about this amazing discovery.
The pieces and parts are currently part of the National Archeology Museum in Athens.
Go here for more about this oddity.