I’m thinking of things like heliocentrism where there was some modern discovery or revelation by science that invalidated a common assumption prior.
My understanding is that flat earth is more a recent phenomena but I’d love to hear some ancient ideas people now miss. Did people think trees weren’t alive? Did people think evaporation was where things simply disappeared?
I’d would love to hear these ideas.
People (=male doctors) postulated that when women are emotional or horny, that’s a sickness called “Female Hysteria”.
It was caused by the womb wondering around inside the body.
The cure was to trigger “Hysterical Paroxysm” by a doctor stimulating her genitals with a vibrator.