3120

Updated: May 4, 2025

By adding the information given by Marco Polo to the incorrect views of Ptolemy about the breadth of the inhabited world, Toscanelli reduced the distance from the Azores to 52°, or 3120 miles. Columbus always expressed his indebtedness to Toscanelli's map for his guidance, and, as we shall see, depended upon it very closely, both in steering, and in estimating the distance to be traversed.

Joseph Jacobs - The Story of Geographical Discovery: How the World Became Known