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TIL clothes hangers weren’t invented until the early 1900s. Before that people had fewer clothes and used shelves and hooks.

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L0Vp TIL a microbiologist named Maurice Hilleman developed eight of the fourteen vaccines that are now routinely administered. He is credited with saving more lives than any other scientist of the 20th century.
LRNp TIL : A single asteroid can contain US$20 trillion worth of metals.
0d4kj TIL a clear fishing wire is attached to posts surrounding the entire perimeter of Manhattan. From 1st Street to 126th. This string is part of an Eruv, a Jewish symbolic enclosure. Many observant Jews in Manhattan rely on this string to leave the house on the Sabbath.
9EYQ TIL that the Junípero Serra High School JV football team recorded a historically bad season in which they failed to win a game or even score a touchdown yet they never attempted to start their backup quarterback. That backup quarterback they refused to start is 4 time Super Bowl champion Tom Brady.
DQ4ve TIL All shellac (78 rpm) and Vinyl (16, 33 and 45 rpm) records start their information from the outside, spinning to the inside. Every other form of spinning data records created since then (floppy discs, hard drives, LaserDiscs, CD, DVD) records from the inside to the outside.