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How did Atlantic trade winds help Columbus’s fleet sail westward?

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Map showing the transatlantic and global routes of major early voyages of discovery and exploration by Spain, Portugal, England, and France during the 15th and 16th centuries. The map traces the journeys of explorers such as Columbus, Cabot, Magellan, da Gama, and others, with labeled paths crossing the Atlantic and encircling Africa and South America, as well as lines of demarcation dividing Spanish and Portuguese exploration zones. — European exploration Map depicting the European exploration of the New World in the 15th and 16th centuries, including the voyages made by Christopher Columbus, John Cabot, Alonso de Ojeda and Amerigo Vespucci, Pedro Álvares Cabral, Ferdinand Magellan and Juan Sebastián del Cano, Giovanni da Verrazzano, Jacques Cartier, Sir Francis Drake, and others. The lines of demarcation represent an early division between the territory of Spain (to the west) and Portugal (to the east).

Christopher Columbus utilized the northeast trade winds to facilitate his westward crossing of the Atlantic Ocean during his first voyage in 1492.12

After departing from Palos, Spain, on August 3, 1492, Columbus intentionally sailed south to the Canary Islands rather than heading directly west from the Iberian Peninsula. By positioning his fleet in the Canary Islands, he was able to take full advantage of the steady, prevailing trade winds that blow westward across the subtropical North Atlantic. These winds provided the necessary propulsion for his ships—the Niña, Pinta, and Santa María—to traverse the ocean toward the Caribbean.132

This strategic use of Atlantic wind systems became a standard pattern for subsequent transatlantic navigation, with explorers later utilizing the Gulf Stream and westerly breezes in the North Atlantic to assist in their return journeys to Europe.2