Born into a wealthy Portuguese family around 1480, Magellan became a skilled sailor and naval officer and was eventually selected by King Charles I of Spain to search for a westward route to the Maluku Islands (the "Spice Islands"). Commanding a fleet of five vessels, he headed south through the Atlantic Ocean to Patagonia, passing through the Strait of Magellan into a body of water he named the "peaceful sea" (the modern Pacific Ocean).
Despite a series of storms and mutinies, the expedition reached the Spice Islands in 1521 and returned home via the Indian Ocean to complete the first circuit of the globe. Magellan did not complete the entire voyage, as he was killed during the Battle of Mactan in the Philippines in 1521.