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TIL in 1962 a single missing hyphen in it's code caused the Mariner 1's backup guiding system to fail, leading to the destruction of the spacecraft. This one missing piece of code caused over $130 million dollars in damages.

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nWpV9 TIL that in 1979, an unknown man known as the "Toynbee Tiles" artist began placing mysterious tiles embedded in the streets of cities across the U.S. and South America, featuring cryptic messages about resurrecting the dead on Jupiter.
R797w TIL - In 2009, Tropicana invested $35 million to rebrand their Orange Juice packaging. Within two months of the change, sales dropped 20% and they lost significant market share before switching back to their original carton. The failed marketing experiment cost them over $50 million.
n04o TIL After pleading guilty to tax evasion in 1979, musician, Chuck Berry, was sentenced to 4 months of prison followed by 1000 hours of charity concerts. That’s why he was still touring as late as age 84
9YGG7 TIL that in 2000 a woman sliced her abdomen (17cm) and uterus and delivered her child because of a lack of medical assistance. She and the child are OK.
wL8n6 TIL that 70% alcohol is better at disinfecting surfaces than 91% alcohol. In one experiment, a 50% alcohol solution killed Staphylococcus Aureus in less than 10 seconds, but a 90% solution failed to kill it even after two hours of contact time.