Europeans arrived in the region with the 1502 voyage of Amerigo Vespucci. Spanish navigator Juan Diaz de Solias visited what is now Argentina in 1516. Spain established a permanent colony on the site of Buenos Aires in 1580, although initial settlement was primarily overland from Peru. The Spanish further integrated Argentina into their empire by establishing the Vice Royalty of Rio de la Plata in 1776, and Buenos Aires became a flourishing port. Buenos Aires formally declared independence from Spain on July 9, 1816. Argentines revere Gen. Jose de San Martin, who campaigned in Argentina, Chile, and Peru as the hero of their national independence. Following the defeat of the Spanish,  »» More