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TIL: One quarter of the world's population is thought to be infected with Tuberculosis.

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yV4a TIL Al Pacino’s grandparents immigrated to the US from Corleone, Sicily, the same town as Vito Corleone in “The Godfather”
6nd7 TIL of Precordial catch syndrome. That sharp pain in your upper left chest which sometimes feel like your heart is turning around isn’t a heart attack. Its a common condition common in children and adolescents, but also can occur in adults.
Mv8A TIL of ‘Paris Syndrome ’ where tourists suffer psychological distress or shock when the city does not live up th their expectations. It is common with Japanese tourists.
JYbgl TIL K9s are trained to sniff for hidden electronic devices like thumb drives, HDDs, phones and laptops.
V4ap TIL that some areas in Scotland and Japan switched to blue street lights at night and saw a decrease in crime and suicide rates.