Amerigo Vespucci has gone on many trips including one with Christopher Columbus. Amerigo discovered South America. The Americas were named after him because, he was the first to realize that they were not Asia, they were a different continent. He also discovered the Amazon River. Here are the years of his other voyages: 1497-1498, 1499-1500, 1501-1502, 1503-1504, and 1505-1507.