Ferdinand Magellan was born in Sabrosa, Portugal in 1480 into a noble family. After serving as a court page for two years, his adventurous spirit led him to a career as an explorer. In 1506, Magellan went to the Spice Islands (Indonesia) to participate in several military and exploratory expeditions. In 1510, he was promoted to the rank of captain. In 1512, he was stationed in Morocco and made preliminary plans to find a western shortcut to the Spice Islands. Unfortunately, Portugal's king, Emmanuel, refused to finance his journey, and in 1517, he renounced his Portuguese citizenship. He promptly offered his services to King Charles I of Spain. Charles I agreed to finance Magellan's trip in the hopes of becoming the king of the richest nation in the world.

On September 20, 1519 Magellan and 237 crew members set sail on five ships from Sanlucar de Barrameda in the hopes of finding a shortcut to the Spice Islands. After three long months of sailing the Atlantic, Magellan and his crew anchored near Rio de Janeiro in the present day South American nation of Brazil. After trading with local natives, Magellan and his men quickly set sail again, ever worried about the threat of Portuguese ships. As the expedition continued, the weather got worse and several crew members were executed for trying to take over the ship. Others were starving or suffering from frostbite. As the ships neared the southern tip of South America, one smashed into the beach and lost all supplies. Nevertheless, in October of 1520, Magellan and his crew crossed the treacherous straits at the tip of South America, which became known as the Straits of Magellan.

As the expedition passed through the straits, they entered the vast Pacific Ocean. Things got worse before they got better. The crew suffered from extreme hunger and were forced to survive by eating rats, sawdust, leather and even maggots. At least 20 men died from disease, particularly Scurvy (caused by a lack of Vitamin C) and starvation. On March 6, the ships finally reached land - the Pacific island of Guam. Nevertheless, the crew members were able to collect clean water and food, despite being on the alert for attacks by the natives. Soon, the crew sailed to the Philippine Islands, where they converted natives to Christianity. During an attempt to convert the native chief, Mactan, to Christianity, Magellan was wounded by an arrow that was driven through his foot by a native warrior. Mactan, who had become upset with Magellan's insistence that he convert, ordered his warriors to attack. They killed Magellan on April 27, 1521. Most of Magellan's crew escaped and set sail.

With the loss of their leader, Juan Sebastian Del Cano took control of the ship and sailed for Spain. Only two ships and 47 men remained. Portuguese forces captured one of the ships, leaving the Victoria as the only ship left. Severe storms and Portuguese attacks battered the Victoria. As Portuguese forces bore down on the expedition near the Cape Verde Islands, Del Cano was forced to continue toward Spain without supplies or rest. Finally, on September 8, 1522, The Victoria made it back to Spain with only 18 men surviving, hence completing the first circumnavigation of the world.