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TIL that US Treasury Secretary Jack Lew was forced to invent a new signature to be put on US bills. His old signature was just a bunch of loops

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a88jA TIL that Singapore has the longest driverless metro system in the world with it being fully automated. It currently has 199km(124mi) of automated lines with an additional 43km(27mi) planned to be completed by 2024. In second place is the Shanghai Metro with 164km(102mi) of automated lines.
KO1vQ TIL About shorthand, a symbol based abbreviated version of writing that focuses on speed. Used in the past to take notes fast before the age of autocomplete.
eLLb TIL the song “Red Red Wine” was written by Neil Diamond in ‘67. The band UB40 covered it in '83 in a light reggae style and it reached #1 on the Billboard 100. Diamond has stated that it is one of his favorite covers and he often performs the song in the UB40 style instead of the original version.
VMXE4 TIL of Charles Henry Turner. He was an African American scientist who earned his PhD in 1907. He discovered that insects could distinguish pitch, that cockroaches can learn by trial and error and that honeybees can see color.
jmBa TIL that the checking account was invented by the Knights Templar in the 12th century. Crusaders would deposit their valuables with the Knights before journeying to the Holy Land, and would receive a certificate entitling them to items of equivalent value upon their arrival.