<P> The cartographers Martin Waldseemüller and Matthias Ringmann from southern Germany , supported by the mapping friend René II , Duke of Lorraine , collected map data over several years , including information on the most recent discoveries , to build up a new collective work of geography and cartography . Along with a book they further incorporated , for the first time in history , the name America on a map , holding the strong opinion that it was a new continent that Amerigo Vespucci had discovered on his voyage and not only a few smaller islands as Christopher Columbus did in the West Indies . </P>
who were the the continent of the americas named after logically
Amerigo Vespucci