Many of us think that we have seen and learned just about everything in this world, don’t we? But did you know that ancient Romans used to brush their teeth with urine? Isn’t that proof that there are still a lot of interesting things for us to learn in this world?
from BrightSide RSS https://brightside.me/wonder-curiosities/15-paradoxical-facts-about-our-world-that-make-you-want-to-read-them-twice-481310/
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