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TIL that Japan didn’t sign the 1929 Geneva convention on treatment of POWs, and nearly half of all Americans captured by the Japanese in WW2 were killed in custody.

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lo0g7 TIL Candy Cigarettes were introduced in late 19th century. They were wrapped in paper and packaged to resemble cigarettes. Some contained powdered sugar, allowing users to blow and produce clouds of sugar, imitating smoke. Candy cigarettes are currently banned in many countries including the UK.
rk14 TIL “Withholding sex and affection” is considered “Sexual Violence” according to the University of Michigan
Ookja TIL experiments found that the colors of light reflected on crops while growing can affect their products: tomatoes grown over red mulch had 20% higher yield, carrots grown over yellow mulch had higher concentrations of beta carotene, "far-red" light increased the lengths of cotton fibers, and more.
JYjpB TIL that in 1825 painter Samuel Morse received a letter which read that his wife was sick. The day after that a new one said that she was dead. When 2 days later he went to his wife, he discovered that she was already buried. Pissed off for the slowness of communications, he invented the Morse code.
VBb4k TIL in 2003, billionaire Eddie Lampert was kidnapped by two men and placed blindfolded in a motel bathroom. Then, his captors made a mistake: they ordered pizza with his credit card. Lampert was then able to negotiate with them that it was better to let him go. The kidnappers were caught within days