It's been 521 years since the Italian explorer Christopher Columbus "sailed the ocean blue/in fourteen hundred and ninety-two." Since then, there have been thousands of parades, speeches and statues commemorating Columbus, along with a critical rethinking of his life and legacy.

But the question remains, how did a man who never set foot on North America get a federal holiday in his name? While Columbus did arrive in the "New World" when he cast anchor in the Bahamas, he never made it to the United States...