Narratives of American literature and history like to begin with what was wrong about this older map, and scholars such as Peter Hulme and others have taught us to understand that it was the power of maps like Toscanelli’s that convinced Columbus that Cuba was really Cathay, and that Hispaniola must be Japan.1 Anecdotes about Columbus’s cartographic and continental confusion now usually circulate as humorous early modern warnings about the failure to ask for directions or the humiliating consequences of bad geography. But this perspective only encourages students and scholars alike to ignore what is perhaps most revealing about this story—the incredible intensity of Europe’s desire to reach Asia, not only in 1492 but also for centuries afte...