Turns out an old wives tale about magic soil from an Irish church was real
Found this while looking for positive stories, haha. Since the early 1800s, the people in a town in Northern Ireland called Boho thought the soil from a nearby church had healing powers. They would put some dirt under their pillow when they were sick, and the folklore was that it would heal you.
A scientist tested the soil a few years back and it turns out to have strong antibacterial properties. https://www.bbc.com/news/uk-northern-ireland-46651702
It got me wondering if there are other examples of survival folklore actually being true?