The map itself is undated, but there are clues it was created in 1491: It quotes a book published that year, and Christopher Columbus may have consulted the map (or a copy) before his great voyage.

Christopher Columbus was a 15th and 16th century explorer credited for connecting the Old World (Europe, Africa, and Asia) and the New World (North America and South America). Born in Genoa ...

A newly analyzed medieval manuscript suggests that sailors from the same region as Christopher Columbus may have known about ...