Americans love a good story, regardless of whether or not it's true.
P.T. Barnum dazzled early American audiences with what he often advertised as genuine fakes -- and the public ate it up.
Throughout the 20th century, urban legends and hoaxes abounded. From the great cabbage hoax to moon-landing conspiracies, commonly believed falsehoods entered the collective "knowledge" of humanity.
But studying and debunking these falsehoods has been around just as long, even being one of the first studied phenomenons within the modern field of psychology.