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TIL There's a lesser form of mania called hypomania, a short period characterized by a decreased need for sleep, increase in energy, increased talkativness and confidence, and a possible increase in creative ideas.

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woAOM TIL Scientists have demonstrated that "Mimosa pudica" plants not only learn from experience—they also remember what they have learnt over extended periods of time.
5YL5r TIL the most expensive dreidel was valued at $70,000. The custom-designed piece took four months to create constructed entirely of 18k gold, the smaller lettering is made with 18k white gold and has 222 modern round brilliant diamonds inlaid into the symbols.
BrnVd TIL at the UK State Opening of Parliament, Yeomen of the Guards (Queen's Bodyguards) still check underneath the House of Lords for traces of Gunpowder. It is a tradition that dates back to Guy Fawkes and the Gunpowder Plot of 1605. Once they get the all clear they have a ceremonial glass of whiskey
XEArE TIL of Hussain al-Shahristani. An Iraqi who was forced into solitary confinement in prison for 8 years under Saddam Hussein. He kept his sanity by “making up mathematical problems, which he then tried to solve.” He later became Iraq’s minister of higher education and scientific research.
jOgj TIL an increasingly dark sense of humour can be an early sign of dementia.