I thought that was always a known fact. We were taught that in school, course that was over 50 years ago when they actually taught the truth.
Bingo! It was almost exactly 50 years ago the Mr Knight of blessed memory - world’s best elementary school science teacher, pbuh, told us that the Egyptians did trepanning - taking out a chunk of broken skull so it wouldn’t impinge on the brain ... and that people survived it.
The issue with the Greeks is they pushed thought into science and the scientific method.
It went from random practices that were done for some voodoo reason into asking WHY should we be doing this.
Cause and effect,
empirical observations,
that sort of thing.
Not letting out the evil spirits stuff...