Your comment sent me off in search of the story regarding growing of corn in New England and the Indians showing the Pilgrims how to do it.
From my reading I learned that the Indians and Pilgrims both already knew about corn and the Pilgrims very likely brought some with them. Columbus introduced Europe to more than just syphilis---he also took corn back with him.
Columbus landed (in multiple trips) not only on the Caribbean Islands but also on the mainland in the area of Venezuela. I did not see where it is believed he encountered corn.
"A pessimist sees the difficulty in every opportunity, an optimist sees the opportunity in every difficulty” ---Sir Winston Churchill
"Political extremism involves two prime ingredients: an excessively simple diagnosis of the world's ills, and a conviction that there are identifiable villains back of it all." ---John W. Gardner
“You can’t go back and change the beginning, but you can start where you are and change the ending.” ---C. S. Lewis