On September 20, 1519, five ships carrying about 270 men left the Spanish port of Sanlúcar de Barrameda sailing west — and kept going. Led by explorer Ferdinand Magellan, the armada’s goal was to reach the Spice Islands of Maluku (in the Indonesian archipelago) and open a new trading route for Spain.
Thus began the first recorded trip around the globe. An almost unimaginably difficult and perilous journey for the crew, Magellan’s voyage was the opening chapter in the rise of global trade and globalization that defines our world today. It also generated important scientific knowledge, including more information about the earth’s circumference and new understandings of global time.
Establishing this new western sailing route was vital to Spain’s future as an international power. In 1494, after Christopher Columbus returned from the West Indies, the Spanish and Portuguese governments signed a deal known as the Treaty of Tordesillas in which the world was divided into two halves: Portugal could colonize and develop trade with Africa, Asia, and the East Indies, while Spain controlled the Americas. By 1515, then, the only way for Spain to access the luxury goods available in the Spice Islands and elsewhere in Asia was via a westward route.