History and anthropology tells us that North and South America did not originated any human life form. That means that all humans in this hemisphere came from else where. This includes the Natives, Europeans, Blacks, Hispanics and finally last but not the least, Asians like myself. But just because I am last, don't make me feel like I am inferior nor do I considered the natives who were here first, to be my superior.  Other people also discovered the western hemisphere, like the Nordic people or Chinese long before Columbus, maybe even going back to ancient Romans or Africans!! But it was Columbus who announced it to the Europeans and direct result of that was the founding of our nation.  History is often grossly politically incorrect since it does offend people. But changing holidays will not change nothing of what happened in the past nor will it make it better. It window dressing at worst. It time to move on, accept what Columbus did and not feel the guilt of being here.