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. Well, that and the ceaseless desire of human beings to discover things and contract scurvy. Let's begin with Jung Ha, who is probably the greatest admiral you've never heard of. Several important things about Jung Ha.