What are two things that amerigo vespucci discovered that christopher columbus didn't

He realized that although he had been connected to two of the previous Columbus expeditions (he supplied provisions), Columbus had NOT reached the East Indies (which Columbus believed to the day he died,) but had found a new land. He promoted an expedition to the New World, commanded by Alonso de Horjeda, and sailed there in his own ship, and discovered the coast of Venezuela. It has always been suggested that the Continent was named after him, but this is now disputed. Large land masses were usually connected with surnames, which would have made the land mass "Vesspucia". It is now thought likely that it comes from Thomas AMERICK, who sponsored the earliest English settlements on the East Coast.