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TIL that "bull," meaning falsehood or nonsense, predates "bullshit" by centuries, and has no etymological connection to the word for male cattle.

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XnJ8 TIL the rabies virus has been known to cause a man to uncontrollably ejaculate up to 30 times a day.
awNvJ TIL USSR used remotely controlled tanks during WW2. They were called "Teletanks" and were able to recognize sixteen to twenty-four different commands sent via radio and drop armored box-bombs.
VG8p TIL That right before Christopher Reeve’s surgery to reattach his skull to his spine Robin Williams ran in saying he was a proctologist and going to give him a rectal exam causing him to laugh for the first time since his accident.
69948 TIL the patron saint of urgent causes is named Expeditus, or Expedite.
RyEj TIL Purple is not considered a color in the visible spectrum, due to it not being a single wavelength color, much like white