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TIL that Luxembourg’s education system is trilingual: the first years of primary school are in Luxembourgish, before changing to German, while in secondary school, the language of instruction changes to French.

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VMmpQ TIL in an effort to keep birds of prey away from airports, French scientists discovered that raptors were repelled by an LED screen featuring a "googly eyes" image that appears to enlarge. Screens at an airport with over 8,000 bird sightings successfully reduced raptor visits during a 5 week trial.
J1MLj TIL about Cornelius Cole (1822-1924), a U.S. Senator who was alive at the same time as both Thomas Jefferson (d. 1826) and Jimmy Carter (b. 1924)
m0Wp TIL that the U.S. Government believes that very high quality counterfeit United States one hundred-dollar bills have been made by unknown organizations or governments, and that most likely most of these notes were produced in North Korea.
ne1dr TIL that Jane Goodall Became One of America's Most Notable Scientists — Without a College Degree. Thanks to a trip to Kenya in her early 20s, Goodall met Louis Leakey, who saw her passion for animals and ability to observe them as her biggest asset.
p718 TIL that in 2007 a recording of the Kent State shootings was discovered that shows that guardsmen were ordered to fire. The DOJ determined there were insurmountable legal obstacles to reopening the case.