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TIL that before the advent of air travel, landowners used to own an infinitely tall column of air rising above their property. Today there’s no official verdict on where property rights end, but U.S. policy is that anything above 500 feet is navigable airspace.

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E1OxX TIL that the whole idea that fish don’t have long-term memories and aren’t very smart in general is plain wrong. In the contrary, fish are actually very intelligent creatures, can remember whole neighborhoods, some use tools like we do and can even do the math.
5Y8NR TIL when Flavor Flav was a child, he managed to both teach himself to play the piano at the age of 5 and set a house on fire while playing with a lighter.
rRVBW TIL Between 1980 and 2001 only 3 players (Mario Lemiuex, Wayne Gretzky and Jaromir Jagr) won the Art Ross Trophy which is the award given to the player who scores the most points in the regular NHL season.
l7pd5 TIL Betty Boop was based on actress Helen Kane, not (as I had believed) on Clara Bow.
nxv9 TIL New York City has no Wal-Marts