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TIL the 1 billion smokers in the world contribute to the 880,000 second hand smoke deaths each year from those that do not smoke.

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e0PJ5 TIL that a man named Oswald can be heard only at Embankment station saying "mind the gap". In 2012 they were planning on changing all voiceovers but decided not to at this station when Oswalds wife told them that he had passed away in 2007. She loved listening to him when on the way to work.
ePn5 TIL that “Keep Calm and Carry On” posters were never used during wartime. The public didn’t actually see the design until a copy was found a few years ago in a second-hand bookshop in Northumberland.
QkKL TIL Dune the movie was initially set to star Salvador Dali, Orson Wells, Gloria Swanson, David Carradine, Geraldine Chaplin, Alain Delon and Mick Jagger with art by H.R. Giger, a soundtrack from Pink Floyd and David Jodorowski as director.It would have been 14 hours long.
VMlKB TIL that after the attack on Pearl Harbor, Congress voted 388-1 to declare war on Japan. The sole dissenter was Jeannette Rankin, a pacifist and the first woman elected to congress. She said of her decision ""I voted as the mothers would have had me vote."
VMK1Z TIL until 1929, less than 100 years ago, man didn't know there were other galaxies outside of the Milky Way. Edwin Hubble and his "computer", a woman named Henrietta Leavitt calculated stars called cepheids could accurately measure long distances, proving the Andromeda "nebula" was a separate galaxy