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TIL that while at the University of Pennsylvania, Elon Musk bought a 10-bedroom fraternity house and converted it to a nightclub

loLda TIL that exactly 190 years ago, The Indian Removal Act was passed, allowing U.S. President Andrew Jackson to grant Native American tribes unsettled western prairie land in exchange for their settlements within the borders of extant U.S. states, thereby clearing the way for further white settlement.
0deJL TIL in 2013 a surgeon in the UK was struck off and convicted of assault after branding his initials into two patients livers. It was only discovered when 1.6-inch (4cm) initials were discovered by another doctor on an organ that he had transplanted failed.
Q5XX TIL Human fingers can feel objects as small as 13 nanometers. “This means that if your finger were the size of the Earth you could feel the difference between houses and cars.”
Y7ZjZ TIL that The nucleus is very small compared to the size of the atom. As an analogy, if the atom where the size of a baseball stadium, then the nucleus would be smaller than a baseball, perhaps closer to the size of a ping pong ball. Most of atom is, in fact, empty space.
wLYNP TIL after he ‘killed’ Sherlock in The Final Problem (1893), readers got upset and relentlessly pressured Conan Doyle to resurrect the character. In 1901 Doyle released The Hound of the Baskervilles in a bid to pacify, and finally in 1903 he resurrected Holmes in the The Adventure of the Empty House.