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I forgot…the infamous Baghdad battery. Found in the heart of what is known as “The cradle of civilization”. The best estimates place this ancient electrical device between 250 BC and 224 AD.
How about the Antikythera mechanism? Estimates place this highly sophisticated device between 150 and 100 BC.
Want something even far more ancient? How about the ancient Chinese star charts dating back as far as 4000 BC.
Google is your friend, don’t take my word for it.