Antikythera mechanism possibly older than previously thought?

[abaris]

The black plague destroyed a lot of knowledge. So have earthquakes and floods.

Go open a history book. The plague didn't destroy collected knowledge, it only destroyed people, but not society.

Also there was a pitiful amount of knowledge to destroy to begin with compared to antiquity. In the West, the Roman physician Galen was still the outmost authority when it came to medicine. And scholars, if you deign to call them that, believed in the Miasma theory to be the reason for the plague.