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TIL that a survey revealed that 56% of Americans said that Arabic Numerals should not be taught in school.For context:Arabic numerals are the numbers that we currently use in all fields of math.

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kJW4e TIL of Australian Senator Bill Heffernan, who in 2014 felt that the new security arrangements at Parliament House were inadequate. To protest this, he smuggled in a fake pipe bomb and presented it at a Senate hearing as proof that the building was "no longer secure".
8aXZG TIL about “Pikuach nefesh” the principle in Jewish law that the preservation of human life overrides virtually any other religious rule. When the life of a specific person is in danger, almost any mitzvah lo ta'aseh (command to not do an action) of the Torah becomes inapplicable.
BgWDK TIL that the song "Istanbul (not Constantinople)", famously sung by The Four Lads in 1953 and They Might Be Giants in 1990, was written to mark the 500th anniversary of the city's titular name change.
4Xb7a TIL There were more than 600 assassination attempts against Fidel Castro
a8Dny TIL: it takes one protein ~10 seconds to move within a cell from one side to the other.