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TIL The construction of the Memorial to the Murdered Jews of Europe was put on hold for a while after they realized that the graffiti-resistant coating was being sourced from the same company the Nazis bought their Zyklon B from

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OG5wX TIL Indian yellow pigment is claimed to have been originally manufactured in rural India from the urine of cattle fed only on mango leaves and water.
4L6R TIL: Louisville Kentucky produces 90% of the world’s discoballs
GYEQG TIL there is no correct way to install an electrical outlet. They are placed "upside-down" for many reasons including letting you know it is attached to a light switch, for grounding purposes, to reduce chances of electric shock.
0dr8j TIL people are still learning Manchu language (used by the Chinese Qing empire) to study ancient Qing texts in Taiwan (but Manchus now speak Mandarin Chinese, and FYI the Chinese most people in the world now learn is a Manchu accent Chinese)
yVdrv TIL: Most gas pumps in the US that play ads have a mute function. It's usually the button below the one in the top right.