Where did vespussi sail in 1501-1502?

In 1501-1502, Amerigo Vespucci sailed along the eastern coast of South America, exploring regions that are now part of Brazil and Argentina. On this voyage, he is believed to have traveled as far south as the Río de la Plata. His explorations contributed to the understanding of the continent's geography, leading to the realization that South America was a distinct landmass separate from Asia. Vespucci's observations during this journey played a significant role in the naming of the Americas.