2,000 years ago the Antikythera Mechanism was lost in a shipwreck. It was recover by divers in 1900. For years its purpose was unknown, but after new x-rays techniques became available it became clear that it was an mechanical computer that was used for astronomical calculations.
Above is a film of a recreation of it, using Lego Technic blocks. I wonder what the original craftsmen who made the Antikythera Mechanism would make of their work being recreated by a modern toy?