Acces-au-marche. The World Factbook. ShowIntroduction :: ARGENTINA Panel - Collapsed In 1816, the United Provinces of the Rio Plata declared their independence from Spain.
After Bolivia, Paraguay, and Uruguay went their separate ways, the area that remained became Argentina. The country's population and culture were heavily shaped by immigrants from throughout Europe, with Italy and Spain providing the largest percentage of newcomers from 1860 to 1930. Argentine. INDEC:INSTITUTO NACIONAL DE ESTADISTICA Y CENSOS DE LA REPUBLICA ARGENTINA.