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TIL Barcodes were first invented to track railroad cars traveling across the country in the 1960s. A colored barcode was attached to steel plates on the side of train cars and scanned as they entered and exited railroad facilities.

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kObW5 TIL that the first known reference to mutual simultaneous oragenitalism as "69" is in the 1790s French book Whore's Catechisms, attributed to Mlle. Théroigne de Méricourt (one the early leaders of the French Revolution), where it is named "soixante-neuf"
YxBB TIL that US Treasury Secretary Jack Lew was forced to invent a new signature to be put on US bills. His old signature was just a bunch of loops
a86ky TIL that the first vending machine was built in the 1st century AD by Heron of Alexandria, the same man who created the first known steam engine
ybnv TIL The Wolf of Wall Street used the word “fuck” 569 times, more than any non-pornographic film except a documentary about the word.
nexnW TIL on May 24, 1996, a drive-in theater in Canada was destroyed by a tornado when the theater was scheduled to show the 1996 disaster movie ‘Twister’. In ‘Twister,’ a scene parallels the exact event of the theater destruction by a tornado during a showing of ‘The Shining.’