youtu.be

X0yVR TIL 3.5 billion years ago, when life first appeared on Earth in the form of single-celled organisms, the days only lasted six hours long, as the planet rotated more swiftly on its axis than it does today. (06:30 in the doc)
wo1d8 TIL that 7-Eleven started as an American company, but the Japanese branch became so successful that it eventually bought the original American company that had once franchised it.
pYkPQ TIL Balloons used to be made from dried animal bladders- YouTube