The District of Columbia was named for Christopher Columbus. The nation's capitol city was carved out in 1791-1792. And 1792 was the 300th anniversary of Columbus arriving in America, a day much celebrated in a young country that didn't much worry about the folks who were here long before the Italian captain.
There's even a statue of Columbus out in front of Union Station. Most folks never see it, however. Just crossing the street there is more treacherous than anything old Chris encountered in the North Atlantic. So all eyes are focused on the cars, not the statue.
Happy Columbia Day!