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TIL many Plains tribes recognized certain persons having the role of "reverse" warriors, experienced warriors who in battle purposely abided by contrary, foolish or crazy principles. The "reverse" warrior charged when ordered to retreat and could only fall back when he was commanded to attack.

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5M8r TIL an image of Jesus Christ that appeared on the side of a South American grocery store after a rain storm attracted hundreds of visitors and was claimed to be able to heal the sick. It was later discovered to be a whitewashed Willie Nelson tour poster.
PYjOJ TIL the reason the marathon is 26.2 miles long is due to the British Royal Family. At the 1908 London Olympics the race was started from Windsor Castle to accommodate a younger member and an extra 385 yards was needed so as to finish at the Royal Box in the White City stadium.
D6br TIL that when you use laundry detergent labelled as a “brightener,” it doesn’t make the clothing any cleaner or restore its color….it’s actually a chemical combination that absorbs more light in the electromagnetic spectrum and re-emits fluorescent light to make the clothing appear brighter.
KGA4 TIL the Beatles played a demo copy of “Sgt. Pepper’s Lonely Hearts Club Band” before its release at full volume from an open apartment window at 6AM. Instead of complaining, the residents opened their windows and listened, aware they were hearing unreleased Beatles music.
nbZ7 TIL that in a blind test taste Pepsi activated more dopamine receptors than Coca-Cola. However once participants were told they were drinking Coke, it then became the greater dopamine producing beverage over Pepsi – even when lied to. Most likely it was Coke’s marketing that was responsible.