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TIL the ridges around the side of the Quarter are a leftover from when the coin was made of silver. The ridges were meant to prevent the practice of shaving off small amounts of silver from the coins.

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16Q8D TIL about the Pascaline, a mechanical calculator invented by Blaise Pascal in 1642 to help his father, who was supervisor of taxes in Rouen. The Pascaline added and subtracted two numbers, and multipled and divided through series of additions or substractions
1a6Gd TIL Electronic Arts is not even in the top 5 companies in terms of game sales in 2016. The top spot goes to Tencent, a Chinese company that makes casual games for the QQ messaging client. They raked in over twice as much profit as EA last year.
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