The Antikythera mechanism was found in a 2000 year old shipwreck 100 years ago, now it's been reconstructed. It predicts the orbits of the known planets of the time, Olympic years, etc.
I wonder if our civilisation is as productive as the ancient Greeks per capita - taking into account the modern mad pace of change o'course.
Of course, we look at the best parts of hundreds of years of Greek history as if it were one thing, one book, one Wikipedia. It's been less than 200 years since my own country experienced it's last great cultural download and the exotic matter (steel, gunpowder) that came with it.