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. First, he was a Muslim. That may seem strange until you consider that by the late 14th century, China had long experience with Muslims, especially when they were ruled by, wait for it, the Mongols. Secondly, Jung Ha was a eunuch.