A 1491 map that likely influenced Christopher Columbus's conception ... Martellus in Florence — shows the world as Westerners knew it in 1491, right before Columbus set sail.

A team of researchers have grown increasingly confident that this late 15th century map of the world -- or a version of it -- possibly guided Christopher Columbus ... map made before his voyage.

The findings disrupted the “New World Order” of arrival. Not only did Christopher Columbus not ... Atlantic possibly a half-millennium before Columbus sailed the ocean blue.

The mistake that took Christopher ... map above. The 15th century map by the German cartographer Henricus Martellus is thought to be the best map we have illustrating Columbus’ perception of wor ...

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.

A 1491 map that likely influenced Christopher Columbus's conception ... Martellus in Florence — shows the world as Westerners knew it in 1491, right before Columbus set sail.