In Canada today is Thanksgiving, and in many Latin American countries, today is Dia de la Raza. But in the United States today is Columbus Day, celebrating Christopher Columbus' discovery of the Americas.
Regardless of the political turmoil that the observance has taken on, Columbus did help dispel the myth that the earth was flat and drove an era of exploration that should not be taken for granted.
Exploration is a good thing - whether it be of the earth, under the sea, or of space, you cannot grow knowledge without growing your horizons. Even if you disagree with the actions of Columbus, you can still separate the discovery from those actions.
Besides, isn't today supposed to be a good day for sales?