The Pee Tax of Ancient Rome
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Did you know Ancient Rome literally taxed pee? In the first century AD, Emperor Vespasian realized public toilets were not just disgusting… they were basically cash machines. Back then, urine was valuable because it had ammonia, and ammonia worked like ancient bleach. So Roman laundry workers, called fullers, would collect stale urine and use it to clean clothes, especially those bright white wool togas. Which means if you saw a rich Roman walking around in a perfectly white outfit, there was a real chance it was cleaned with someone else’s bathroom trip. But here’s where it gets even crazier. Vespasian decided that if people were making money from public pee, the government needed a cut. His own son thought the tax was nasty, so Vespasian reportedly held up a coin and asked, “Does this smell bad?” When his son said no, Vespasian basically said, “Exactly. Money doesn’t stink.” And that phrase is still remembered today. Ancient Rome didn’t just build roads and arenas. They turned public toilets into profit.