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).
Italian Americans
Italian navigators and explorers played a key role in the exploration and settlement of the Americas by Europeans. Christopher Columbus, the explorer who first reached the Americas in 1492–1504, was Italian. Another notable Italian explorer, Amerigo Vespucci, who explored the east coast of South America between 1499 and 1502, is the source of the name America. England's claims in North America were based on the voyages of the Italian explorer John Cabot (Giovanni Caboto) and his son Sebastian Cabot (Sebastiano Caboto) in the early 16th century. In 1524 the Italian explorer Giovanni da Verrazzano was the first European to map the Atlantic coast of today's United States, and to enter New York Bay.