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TIL that before respirators were invented, firefighters were required to grow a full beard. Before a fire, firefighters would soak their beards in water and clamped it in their teeth to act as filters, which would block the larger ashes.

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Oo6O7 TIL French author Voltaire wrote over 2000 books & was read by Napoleon, Frederick the Great & Catherine the Great. Upon his death in 1778 Catherine the Great purchased his entire collection & moved it to The Hermitage in Russia.
MenLB TIL that if February, Germany charged a 95 year old woman with 10,000 counts of aiding and abetting murder because she was a stenographer for a SS officer at a concentration camp when she was 17. She lives in a nursing home, but if the case goes to trial, she will be tried in juvenile court.
v1KE8 TIL an 18-year-old from the UK was arrested after attending a youth group session about dealing with anti-social behaviour, as he had an anti-social behaviour order banning him from congregating with 4 or more youths and the group was larger than 3.
ADOKg TIL Due to such normally low light levels some species of deep sea animals are blinded and eventually die after being exposed to the light from a research submersible.
OoAW7 TIL that Karl Berg found after recording parrots, that parent parrots name their children and those names are used through life.