Episode Details

Ralph Waldo Emerson called Amerigo Vespucci a thief and a pickle dealer who stole the glory of the true pioneers. This deep dive asks whether Vespucci was a brilliant navigator who grasped what Columbus never accepted, or a beneficiary of an early modern publicity campaign, and what his story reveals about how history gets written.

We follow Vespucci from a humanist education in Renaissance Florence and work as a Medici business manager to supplying Columbus's voyages in Seville. We examine the disputed 1497 voyage, the documented 1499 expedition and its slave raid, and the 1501 Portuguese voyage where celestial navigation convinced him he had found a New World. Then we trace how sensational pamphlets and Martin Waldseemuller's 1507 map put America on the globe.

• Why historians doubt the 1497 voyage that would have beaten Columbus to the mainland
• How freshwater from the Amazon 25 miles out at sea pointed to a vast continent
• Using lunar conjunctions to calculate longitude and challenge Ptolemy's three-continent world
• Why Waldseemuller tried to retract the name America in 1513, and how Mercator sealed it
• Vespucci's final role as Chief Pilot of Spain, likely unaware a continent bore his name