Christopher Columbus had been reading about Marco Polo's exploration to asia and had heard about all the wealth he had and all the things he had found. Christopher Columbus decided to explore asia too Since they thought the world was only asia, europe, and africa they thought going west of europe would take them straight to india. So Chris ended up in the Caribbean and made his way to the southern parts of the U.S.A. And called the Natives, Indians since he thought he was in india. Later on Amerigo Vesputchi Found the northern america. North and South America was named after Amerigo.