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TIL Although most Americans speak English, the United States has no official language.

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OG85e TIL of the Garage Barrage Tour by Metallica. In 1998, to promote their covers album "Garage, Inc.," the band performed five shows where they only played cover songs. Metallica songs were instead performed by the opening act: a Metallica tribute band called Battery.
BgWjK TIL: "Square Grouper" was the nickname for bales of marijuana dropped out of airplanes and fished out of the ocean in the 70s-80s.
wLR5Y TIL One of the first ever works of post apocalyptic fiction was written in 1826 by Mary Shelley, author Frankestein. In it, she describes a dystopian future in which earth in the 21st century is ravaged by a mysterius pandemic
W7N9X TIL that even if you filled it with the densest substance on earth, you could not exceed the weight limit (70 lb) of a small U.S. Postal Service flat rate box.
e0b1D TIL That DNA computing, using DNA, biochemistry and molecular biology instead of traditional silicone based technologies used in computers is a thing