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TIL on 1956, to fight school integration, Mississippi repealed its compulsory attendance law

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1aQV TIL the world’s oldest functioning light bulb was built in 1900 and is still burning.
NXEDJ TIL that, while it has no means of propulsion (which would risk distorting the results of its measuring instruments), the RV FLIP can sink partially vertically, to be submerged in the manner of a platform to study undersea sound waves. Its upright position suggested that it had sunk.
wo8GY TIL: of Jim Abbott, a former pitcher for the Yankees, who was born with one hand, and even threw a No-Hitter in a game despite his disability
9ww16 TIL US President John Adam’s beloved daughter Nabby developed breast cancer and underwent a complete mastectomy without anesthesia while strapped to a chair.
d8WdK TIL about the Doomsday Algorithm - a method to mentally calculate the day of the week given any date based on the fact that 4/4, 6/6, 8/8, 10/10, 12/12 all occur on the same day of the week regardless of the year.