Buenos Aires is the capital of Argentina and its largest city and port. Located on the southern shore of the Río de la Plata, on the southeastern coast of South America, it is the most heavily industrialized city of Argentina. It is a major food-processing center with huge meatpacking plants. It was first settled in the 16th century and was subordinate to the Spanish Viceroy of Peru. The criollo citizens of Buenos Aires successfully ousted the Spanish Viceroy in what year? Discuss
Source: The Free Dictionary