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TIL around 1000 AD there was a Native American city with a population around 50,000, and that archeologists aren’t sure how it became a ghost town by 1300 AD.

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W0yY TIL Improbable Research tested the limits of the United States Postal Service by sending a variety of unusual unpackaged items then documenting how many were delivered.
78wWb TIL the longest time served in prison by someone who was later exonerated was 48 years
0dM4N TIL of the Pratfall Effect, where highly competent individuals tend to become more likeable after committing mistakes while average-seeming individuals tend to become less likeable even if they commit the same mistakes.
Lanm TIL about the possibility of “Hypertumors”, when cancer tumor gets so big it itself gets cancer
JbDl TIL Kobe beef was not legally exported out of Japan until January of 2012. If you ate Japanese Kobe Beef outside of Japan before this date, you were duped.