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Key Facts In This Video
At the 1904 World's Fair, an ice cream stall ran out of plates, and combined forces with the waffle stall next door to create the first ice cream cones. 01:58
In 1968, a 3M chemist discovered a low-tack adhesive that was strong enough to adhere paper, but weak enough to avoid damage. With that, the Post-it Note was born. 04:24
Play-Doh was originally intended as wallpaper cleaner. 05:23
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