"Fear of Islam Shaped His View of Native Americans"

"The answer lies in Columbus'—and Europe's—long history of crusading against Islam. The crucible of centuries of these religious wars, and the increasing encroachment of the Ottomans and other Muslims in the years after 1453, forged the notion of Islam as an enemy in the minds of Columbus, Cortés and the thousands of other Europeans who fought Muslims in the Old World and then American Indians in the New World."

Alan Mikhail in the Los Angeles Times discusses the "centrality of Islam" for Christopher Columbus.