Wanderlust World Wanderlust World Between the 1400s and 1600s, European powers launched fleets across the Atlantic. Four intertwined motives drove this age of discovery.
The Ottoman capture of Constantinople (1453) and Muslim control of overland Silk Road routes made Asian spices (pepper, cloves, nutmeg), silk, and porcelain expensive and unreliable. Portugal (Prince Henry the Navigator) pioneered the African route; Columbus pitched a western route to the Indies to Spain.
Mercantilist doctrine: national power = bullion (gold/silver) + favorable trade balance. Rumors of "Cipangu" (Japan) and "Cathay" (China) riches, plus legends of El Dorado, Seven Cities of Gold, drove conquistadors. The discovery of Mexican/Peruvian silver (Potosí, Zacatecas) validated this—fueling global trade and European inflation (Price Revolution).
Papal bulls (Inter caetera, 1493; Treaty of Tordesillas, 1494) divided the non-Christian world between Spain and Portugal, mandating evangelization. Missionaries (Franciscans, Jesuits, Dominicans) accompanied expeditions. Conversion was both sincere spiritual duty and political legitimation for conquest.
Renaissance humanism, Ptolemy's Geography (recovered), improved cartography, and new tech (caravel, astrolabe, magnetic compass, improved rudder) made long ocean voyages feasible. Explorers like Dias, da Gama, Cabot, Vespucci, Magellan sought knowledge, fame, and patronage. The carta de marear (sailing charts) and derrotero (logs) accumulated empirical data.
These motives reinforced each other: trade funded missions; missions legitimized conquest; conquest yielded bullion; bullion funded more ships. The Atlantic became a European lake, linking four continents in the Columbian Exchange—transforming ecology, demography, and economy worldwide.