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TIL In the United States, in a single eighteen-month period during 1971 and 1972 the FBI counted an amazing 2,500 bombings on American soil, almost five a day.

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eW84 TIL that in World War II the United States created a program called “Hemp for Victory” where farmers and their sons wouldn’t be drafted if they grew Cannabis for the war effort.
oBVRo TIL white button, cremini, and portobello mushrooms are not different varietals, but the same species at different maturity levels.
YpKBr TIL that both the penny and the nickel cost more to make than they're worth, and that up to 1982 the metal in a penny was worth more than the penny itself.
8a6MZ TIL Dormant viruses can reactivate during spaceflight. Herpes viruses reactivate in more than half of the crew aboard Space Shuttle and International Space Station missions.
9YRWB TIL that snails leave behind dotted trails. I discovered this after observing a snail on my back porch which left its trail. After researching it; it turns out they lift up their bodies when they move. Slugs are the ones that leave lines.