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TIL that article 282, section 22 of the Treaty of Versailles, following the end of WWI, establishes that 435 Hz shall be the standard concert pitch of the signatory nations

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7rMLL TIL Keurig K-Cups are non-recyclable, non-biodegradable, and generate a ton of plastic waste. They are so environmentally unfriendly that its own inventor has said: “I feel bad sometimes that I ever did it.”
J1pk8 TIL that Electrician and Mechanic magazine had six title changes and multiple mergers, in a period of only two years. The magazine which boasted of having an exclusively male readership, eventually became Popular Science.
ZOYp TIL that if your flag is damaged or worn, according to the US flag code it should be burned in a dignified way
MVBB TIL that the etymology of ‘internet trolls’ is from fishing (e.g. trolling for fish), rather than describing ugly large humanoids with poor intellect.
BXNe TIL A Boxer Named Joe Walcott coined the phrase The Bigger They Are The Harder They Fall