Ferdinand Magellan was born in Portugal circa 1480. As a boy, he studied mapmaking and navigation. By his mid-20s, he was sailing in large fleets and was committed in combat. In 1519, with the support of King Charles V of Spain, Magellan set out to circumnavigate the globe. He assembled a fleet of ships and, despite huge setbacks, his own death included, proved that the world was round.