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TIL: Tesla may have been the first person to patent the radio.

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via reddit.com

Raj TIL Starship Troopers is the only science fiction novel recommended by three of the five branches of the US military.
6pEm TIL in 1990, a 15 year old girl testified before Congress, describing how Iraqi soldiers killed babies in a Kuwaiti hospital. This helped stir US favor for the Gulf War. The girl was later found to be the daughter of a Kuwaiti ambassador, and her story fabricated by American PR firm Hill & Knowlton
Oopag TIL that Van Halen's "no brown M&Ms" clause was a way to make sure show promoters read the whole contract
YpDkd TIL Sweden's early history is largely unknown because there are no written documents from Sweden before the 12th century. On its formation, a Swedish history book simply states: "How and when the Swedish kingdom appeared is not known."
4XkMJ TIL that water towers provide water pressure based on their height and don’t just hold water.