Most people refer to Michelle Obama as the First Lady, but the Secret Service call her Renaissance.
The codename, more of a tradition than a security measure, is one of 46 interesting facts found in Mental Floss' most recent video about America's First Ladies.
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So before you go and stuff your face with potato salad and hot dogs, stuff your brain with some useless knowledge about the First Ladies.
BONUS: 10 Kids Who Can't Even Handle Fireworks Right Now
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