Columbus's First Voyage

Europe had long enjoyed a safe land passage to China and India's sources of valued goods such as silk, spices, and opiates under the hegemony of the Mongol Empire (the Pax Mongolica, or Mongol peace). With the Fall of Constantinople to the Ottoman Turks in 1453, the land route to Asia became more difficult. In response to this the Columbus brothers had, by the 1480s, developed a plan to travel to the Indies, then construed roughly as all of south and east Asia, by sailing directly west across the "Ocean Sea," i.e., the Atlantic.