Following Ptolemy’s example, European cosmologists disregarded the Pacific Ocean, which covers a third of the world’s surface, from their maps, and they presented incomplete renditions of the American continent based on reports and rumors rather than direct observations. Ptolemy’s omissions inadvertently encouraged exploration because he made the world seem smaller and more navigable than it really was. If he had correctly estimated the size of the world, the Age of Discovery might never have occurred.
