I have a theory
Sometimes I think that we believe because of the science we have today that our ancestors were very stupid and anything that was science back then was basically black magic bs. But I have a theory that if you look into things like for example medical techniques a lot of the times there would be a real treatment benefit.
Example: George Washington bled himself to death. For decades they have said they were so stupid back them for bleeding people that it was pure pseudoscience. But they did a study in the past decade or so that found that when you bleed a lot it actually reduces inflammation so it would have made it easier for him to breath. There is also other benefits.
Example 2: this ones kind of funny but in Islam it is said that camel urine is actually something that can be used to treat diseases. For centuries scientists in the west said this was bs. Recently theyve started studying it and found when you boil camel urine it actually has all types of health benefits.
These are the only two examples that come to me now but ill add more when I remember. But I've seen this countless times that our ancestors were much craftier than we give them credit for. Science should always question itself but dont discount it just because our pagan ancestors did it!