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TIL in 1985, sportswriter Zotique Lespérance was inducted into the Hockey Hall of Fame's media section, along with Tim Moriarty and Dick Johnson, however Lespérance was not invited to his induction ceremony as the Hall of Fame was misinformed that he had died. Lespérance was invited the next year.

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OQV4 TIL there is an endangered indigenous group of people living in the eastern Amazon forests of Brazil called Awá-Guajá. They are known for smiling all the time.
OoXRg TIL Dr. Bagenholm fell face first into a frozen river while skiing and got stuck. Doctors revived her from being clinically dead which led to the development of therapeutic hypothermia, which has increased survival rates and brain function in many heart surgery, epileptic, and stroke patients.
jN57X TIL Scientists in China have successfully grown tooth enamel which paves the way to replace fillings & crowns. A chemical mixture applied to whole human teeth created an enamel layer 2.7 micrometers thick within 48 hours. (Calcium & phosphate ions with triethylamine in alcohol).
pY70N TIL about The Guatemalan Syphilis Experiment was a medical experiment conducted by the United States government from 1946 to 1948, which involved intentionally infecting Guatemalan prisoners, soldiers, and mental health patients with syphilis and other sexually transmitted diseases without their con
a8WYA TIL of the Maidenhead Railway Bridge in England. When it was built, its arches were the widest and flattest in the world. Critics feared the bridge was unstable, so the arches' centering was left in place, until it was destroyed in a storm - the arches stayed up, vindicating the design.