Argentina is a South American country with a population descended mostly from Spanish and Italian immigrants. Its capital and largest city is Buenos Aires. Some key facts: - Argentina has a land area of over 2.7 million square kilometers and borders countries like Brazil, Paraguay, Bolivia, Chile and Uruguay. - Spanish is the official language and Roman Catholicism the predominant religion. - The document provides brief histories of Argentina's colonial development and independence, and mentions famous Argentines like soccer star Lionel Messi and heart surgeon Rene Favaloro.