Did you know that Lancaster, Pennsyvlania, was America's capital city for exactly one day: September 27, 1777? Read on for more mind-blowing facts.

Did you know that Lancaster, Pennsyvlania, was America's capital city for exactly one day: September 27, 1777? Read on for more mind-blowing facts.
Here's a little-known fact: January 4 is National Trivia Day! Let's celebrate with some of our favorite facts, pulled from our Amazing Fact Generator and the @mental_floss Twitter