Ferdinand Magellan

Ferdinand Magellan was born in Portugal, either in the city of Porto or in Sabrosa, circa 1480. His parents were members of the Portuguese nobility, so after their deaths, when he was just 10 years old, Magellan became a page for the queen. Magellan studied at Queen Leonora's School of Pages in Lisbon and spent his days poring over texts on cartography, astronomy, and celestial navigation—subjects that would serve him well in his later pursuits.
Navigator and Explorer
In his mid-20s, Magellan joined a Portuguese fleet that was sailing to East Africa. He soon found himself at the Battle of Diu, in which the Portuguese destroyed Egyptian ships in the Arabian Sea. He also explored Malacca, located in present-day Malaysia, and participated in the conquest of Malacca's port. It is possible that he sailed as far as the Moluccas, islands in Indonesia, then called the Spice Islands. The Moluccas were the original source of some of the world's most valuable spices, including cloves and nutmeg. The conquest of spice-rich countries was, as a result, a source of much European competition.
While serving in Morocco, Magellan was wounded, and walked the remainder of his life with a limp. After his injury, he was falsely accused of trading illegally with the Moors, and despite all of his service to Portugal, and his many pleas to the king, any further offers of employment were withheld him.
In 1517, Magellan moved to Seville, Spain, to offer his skills to the Spanish court. In the three years following his departure from Portugal, he had religiously studied all of the most recent navigation charts. He had also benefited from the mistakes and discoveries of several other explorers—Christopher Columbus's "discovery" of North America and Vasco Núñez de Balboa's march across the Panamanian isthmus to the Pacific Ocean were just two of the many events that inspired Magellan's bold quest for an all-water passage to farther-flung, spice-rich lands.
Magellan's Legacy
Though Magellan died before the voyage was completed, he is often credited with the first circumnavigation of the earth as he initially led the voyage. He also discovered what is now called the Strait of Magellan, named the Pacific Ocean, and South America's Tierra del Fuego. Magellanic Clouds in space were also named for him, as his crew was the first to view them while sailing in the Southern Hemisphere. Most important to geography though, was Magellan’s realization of the full extent of the earth- something that significantly aided in the development of later geographic exploration and the resulting knowledge of the world today.