I am a history
major and i can tell you that your question is actually a really
difficult one to answer. you see if fringes on what discover really
means: Does it mean who was there first, does it mean who was there from
a European society first, does it mean who traded there or who settled
America? You see without that the teacher is really leaving you open to
give the wrong answer. So lemme just say this, Native Americans were
here first, Vikings stopped by but didn't settle, A few Spaniards and
Portuguese discovered south America and Columbus just discovered that
there was land on this side of the globe. Of course he was so stupid he
thought he was in India, so we now know the islands he landed on as the
west indies. I would tell her to say it was the native Americans
though,she can make a good argument for that.