In 1901, divers pulled a lump of corroded bronze out of a two thousand year old shipwreck. It took the next century to understand what it was, and the answer broke the timeline of human history.

It's called the Antikythera Mechanism, and it is the oldest known computer on earth.

It was built by the ancient Greeks, around 100 BC, and it should not exist. Nothing else of its sophistication would appear anywhere in the world for more than a thousand years after it...
@JamesLucasIT #globalmuseum