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TIL The first fully automated guided missile used in combat was deployed by the US in 1945. It was successfully used against Japanese ships. The ASM-N-2 Bat used active miniaturized RADAR, created before the age of transistors. It was developed by The Bureau of Standards, Bell Labs, and MIT.

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XPL6 TIL that 29% of San Francisco’s air pollution comes from China
DRRp TIL that the Casa Bonita restaurant from South Park is a real place and pretty much exactly as described by Cartman in the episode
m1LE TIL that in 1943, for one season only, the Pittsburgh Steelers and the Philadelphia Eagles merged and played as the Phil-Pitt Steagles. The reason for the merger was that both teams had lost so many players to the WWII Draft.
y7w8 TIL in 1961 the US Air Force accidentally dropped two nuclear bombs on North Carolina, each more than 250 times the destructive power of the Hiroshima bomb, but nether exploded. One of them remains buried in the ground where it landed.
gMb47 TIL Mr. Bean's choir theme song translates to "Behold the man, who is a bean."