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TIL: You can be allergic to allergy medicine

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x6mew TIL that in 1951, the Ferranti Mark 1 computer performed the first known recording of computer-generated music, playing “God Save the King”, “Baa Baa Black Sheep”, and “In the Mood”.
yVKB8 TIL the phrase "under god" wasn't in the original Pledge of Allegiance, and wasn't added until 1954
Wex8 TIL that a double rod pendulum creates totally unpredictable trajectories, due to the ‘chaos theory’.
VMr0Z TIL Eugen Sandow, The Father of Modern Bodybuilding, was defeated by a woman Katharina Brumbach in a strength contest. She later changed her name to Katie Sandwina( feminine derivative of Sandow).
0wgAM TIL: A "hobo" is someone who travels and finds work. A "tramp" travels, but mostly does not work. A "bum" neither travels nor works.