Dogs have two sets of teeth, just like humans. They first have 30 "puppy" teeth, then 42 adult teeth.

Queen Elizabeth I regarded herself as a paragon of cleanliness. She declared that she bathed once every three months, whether she needed it or not.

The characters Bert and Ernie on Sesame Street were named after Bert the cop and Ernie the taxi driver in Frank Capras "It's a Wonderful Life".

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