When Europeans Sought a Western Route to Asia, They Found the Americas

In the late 15th century, European powers—especially Portugal and Spain—sought a direct sea route to Asia (the "Indies") to bypass Ottoman-controlled land routes and access the lucrative spice, silk, and luxury trades.

The Miscalculation

Christopher Columbus, sailing for Spain in 1492, underestimated Earth's circumference and overestimated Asia's eastward extent. He believed a westward voyage of ~3,000 miles would reach Japan (Cipangu). Instead, at roughly that distance, he encountered the Bahamas, Cuba, and Hispaniola—the fringes of a continental landmass unknown to Europe, Africa, and Asia.

What They "Found"

• Two Continents: North and South America, populated by diverse civilizations (Aztec, Inca, Maya, Mississippian, and hundreds of nations) for 15,000+ years.
• Not Asia: It took decades (Vespucci, Magellan) for Europeans to accept this was a "New World," not the Indies.
• Colonization: The "discovery" triggered the Columbian Exchange, conquest, settlement, demographic collapse of Indigenous peoples (disease, war, enslavement), and the transatlantic slave trade.

The Actual Western Route to Asia

The genuine western sea route to Asia was finally opened by Ferdinand Magellan's expedition (1519–1522), which sailed around South America (Strait of Magellan) across the Pacific to the Philippines and Spice Islands (Moluccas). But the Americas—initially an obstacle—became the focus of empire.