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TIL: The PH scale was invented in Carlberg's laboratory to improve the brewing process of beer.

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via reddit.com

16rB7 TIL that the idea that people distribute poisoned candy on Halloween is a myth. There has never been a confirmed case of strangers injuring or killing children in this way, though some parents who have killed their children have tried to use it as a way to cover up their crimes.
R7DZQ TIL devious cheesemakers of the 17th century coloured their cheese orange to pass their skim-milk products off as the full-fat, naturally yellowish-orange cheese that Londoners had come to expect, starting the tradition of dying cheese orange.
Zpk4D Dutch pink is yellow because “pink” wasn’t recognized as its own category until it was given the name of the flower dianthus, historically called a “pynk,” and though it comes in many colors, it the most common varieties are light red.
694aZ TIL that in the 1961 film Barabbas, an actual solar eclipse was used to recreate the crucifixion darkness during the death of Jesus.
X00BD TIL Rami Malek started his career by paying $2,000 to deliver three lines in Gilmore Girls which “took him forever to pay off”.