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TIL hotter weather increases both suicide rates and the use of depressive language on social media.

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d84Ar TIL that while not enforceable, the U.S. has a flag code which advises Americans on proper flag usage. Examples include, No marking or changing the flag's colors, It must be lowered at night unless properly lit, a flag may not be used on a float without a pole, and no flag apparel of any sort.
E1WYd TIL in 1932 both Douglas MacArthur and Dwight Eisenhower used six M1917 tanks and an infantry division to run over and drive out WW1 veterans who occupied DC. They were demanding to be paid their bonus they received in 1924 but which could not be redeemed until 1948.
R7dya TIL about Esperanto, a language constructed by a Polish ophthalmologist in in 1887 meant to hone world peace.
LmOr TIL that praising a child’s intelligence may encourage them to only engage in low-risk tasks in which their intelligence won’t be challenged, as learning takes a backseat to praise-seeking. This will often last throughout adulthood. Want better results? Praise them on their efforts instead.
gM6EA TIL that Adam Steltzner, chief engineer of NASA's Mars 2020 project, was a music college dropout who failed high school geometry. He took his first physics class in a local community college only because it was a prerequisite for another class.