So unlike me from the past, I'd argue that Columbus has a deserved reputation in history, but was he really the greatest sailor of the 15th century? Well, let's meet the other contestants. In the red corner, we have Jung Ha, who, when it comes to ocean-going voyages, was the first major figure of the 15th century. And in the blue corner is Vasco da Gama from scrappy little Portugal, who managed to introduce Europeans to the Indian Ocean Trade Network. Columbus, you have to sit in the polka-dotted corner. As you'll no doubt remember from our discussion of Indian Ocean Trade, it was dominated by Muslim merchants, involved ports into Africa and the Middle East and India and Indonesia and China, and it made a lot of people super rich. That last point explains why our three contestants were so eager to set sail.