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TIL A safety pin is a variation of the regular pin which includes a simple spring mechanism and a clasp

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neRXb TIL Giraffe meat is kosher because it technically follows the kosher rules of “having split hooves and chewing its cud” The only reason it is not eaten is because it is too expensive and not widely available.
rRm61 TIL: Rebecca Black donated the proceeds from her video "Friday" to charity
Lmy0 TIL: Loopholes were small slits in castle walls that let archers fire arrows, and the modern use of the term reflects the apparent contradiction between the intent of an impenetrable wall and having small holes in it that allow defenders to gain an advantage
bPPa TIL that in MAY 1997, an IBM supercomputer known as Deep Blue beat then chess world champion Garry Kasparov, who had once bragged he would never lose to a machine. After 15 years, it was discovered that the critical move made by Deep Blue was due to a bug in its software.
P1mn TIL that 94% of languages are spoken by 6% of the world’s population