Exploration
In the Pacific Ocean, Jorge de Menezes (c. 1498–?), discovered Papua New Guinea. García Jofre de Loaísa (1490–1526), discovered the Marshall Islands. Explorations of the Americas began with the initial discovery of America by Christopher Columbus (1451–1506), who led a Castilian (Spanish) expedition across the Atlantic, discovering America. After the discovery of America by Columbus, a number of important expeditions were sent out to explore the Western Hemisphere. This included Juan Ponce de León (1474–1521), who discovered and mapped the coast of Florida; Vasco Núñez de Balboa (c. 1475–1519), who was the first European to view the Pacific Ocean from American shores (after crossing the Isthmus of Panama) confirming that America was a separate continent from Asia; Aleixo Garcia (14?–1527), who explored the territories of present-day southern Brazil, Paraguay and Bolivia, crossing the Chaco and reaching the Andes (near Sucre).
Early world maps
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".
The Piri Reis map is a famous world map created by 16th-century Ottoman Turkish admiral and cartographer Piri Reis. The surviving third of the map shows part of the western coasts of Europe and North Africa with reasonable accuracy, and the coast of Brazil is also easily recognizable. Various Atlantic islands including the Azores and Canary Islands are depicted, as is the mythical island of Antillia. The map is noteworthy for its apparent south-eastward extension of the American continent to depict a southern landmass that some controversially claim is evidence for early awareness of the existence of Antarctica. Alternatively, it has been suggested that this is actually a record of the coast as far as Cape Horn, explored secretly by Portuguese navigators before 1507 (when it appeared on the Waldseemüller map) and bent south-eastward simply to fit on the parchment.