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TIL that Alexander Fleming discovered penicillin, but never tried to make an antibiotic out of it. It was not until a decade later that a man named Howard Florey found Fleming's little-known paper and realized the mold's potential. Florey's work is estimated to have saved up to 200,000,000 lives.

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R1Yw TIL that Claudius, a roman from a noble family, had severe disabilities and survived the assassination of his family because nobody thought he was a threat. Claudius became the Emperor after the death of Caligula, began the conquest of Britain, and is widely regarded as a great ruler of Ancient Rome
neaZG TIL that retired astronaut, Heidemarie Martha Stefanyshyn-Piper, accidentally lost a bag of tools during a spacewalk in 2008. The tools, valued at $100,000, were lost when she accidentally pushed aside the bag they were in and it floated away.
7r5Mr Today I Learned that the image of Smokey the Bear undergoes more enforced regulation than the American flag. This is not hyperbole, the US government has to give explicit permission for anyone to have a costume, and does not allow Smokey The Bear to be depicted in any way that is demeaning to him.
l7BN TIL SpaceX launched a wheel of cheese into orbit to honor Monty Python.
R7nE6 Til that dogs can eat raw chicken bones. The issue is with any cooked bone. Cooked bones become dry and brittle which can crack and splinter leading to choking, internal injuries, punctured organs, and, or death. All cooked bones should be disposed of properly and not be given as treats.