Ancient people didn’t know about microbes, but they figured out that boiling water stopped people from dropping dead. In the 1800s, Dr. John Snow (no, not from Game of Thrones) linked a cholera outbreak to a water pump, and suddenly boiling became a big deal. It’s the original “kill it with fire” hack, practiced by humans for thousands of years—probably since someone accidentally dropped a dead rat into a river and thought, “Well, let’s give it a good boil.”
Water Purification Facts and Truth (24 Interesting Topics