If we're talking "North America" specifically versus the "Americas" in general, then seniori Giovani Cabotti gets the nod for the first touch down in what would later be Canada and the US. However, Columbus, wheter he was Spanish, Italian, or Jewish (or some combination therof) was the first to get to the Americas. He was only seventy miles or one hundred klics from Miami Beach. I can't figure out why he didn't stop by to play some golf and have a few mai thais. I guess he was more interested in the action in Havana.
.....we here highly resolve that these dead shall not have died in vain -- that this nation, under God, shall have a new birth of freedom -- and that government of the people, by the people, for the people, shall not perish from the earth. A. Lincoln