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TIL Leonard Maltin's Movie Guide was first released in 1969 when Leonard Maltin was still a teenager.

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WDPY TIL JCPenney tried to do away with fake retail sales and implemented flat rate pricing. They failed miserably and lost 700 million dollars.
XEByX TIL The most popular climate denying site, 'Wattsupwiththat', actually helped scientists document weather station data, only the end results were, of course, reverse of what they thought
8ajQL TIL the striped appearance of some tulips was originally caused by a virus that infects their bulbs to “break” their solid colors. This appearance was highly sought after during the 17th century Dutch “tulip mania;” however, the virus results in smaller tulips with weakened bulbs and shorter stems.
8epGb TIL the Big Gulp was invented in 1976, when Coca-Cola suggested that 7-11 use 32 oz. cups, much larger than 20 oz. cups being used by McDonalds at the time. The first regional order of 500 Big Gulp cups sold out in a week, eventually forcing automakers to make cupholders bigger as popularity grew.
9Y7VG TIL Zebrafish can produce their own sunscreen, a chemical called gadusol which protects the fish against harmful UV radiation. Scientists are also now learning that many species of vertebrates, mammals excluded, produce gadusol. Zebrafish can also regenerate their hearts during their larval stages.