Well, I'm a Mormon and we are taught in the Book of Mormon that the first settlers to this continent were the Jaredites, who came over when the Tower of Babel was built in the Middle East. The second group to come to the Americas was the Nephites, about 600 BC. The Lamanites split from the original group of Nephites and eventually wiped them out. Today's modern Native Americans are descendents of the Lamanites and were already here when all the European explorers came over.
I don't expect many people to swallow my beliefs, but it very clearly explains to me that all Indian tribes should get credit for "discovering" America. Europeans, and later the American people as a whole, never really gave the Indians their fair share of everything, never tried to understand them, and never honored them as the original stewards of this great land.