Amerigo Vespucci was an Italian explorer, financier, navigator and cartographer, who discovered that Columbus had not gone to the Indies, he had discovered a completely new continent. After his discovery, the continent started to be called America. "America was named after Amerigo Vespucci, a Florentine navigator and explorer who played a prominent role in exploring the New World." biography.com Editors. Article: Amerigo Vespucci. Before Amerigo Vespucci, explorers thought they had arrived to Asia, so I wonder what if Amerigo Vespucci had never realized this? Would we have adapted an Indian culture? Would we have our own culture?