In 1982, a cactus in Phoenix, Arizona killed a man. David Grundman fired two shotgun blasts at a giant saguaro cactus that ended up falling on top of him.

Decaffeinated coffee is not 100% caffeine free. When coffee is being decaffeinated, 2% of the caffeine still remains in it.

The first traffic light was in use in London in 1868, before the advent of cars.

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