Buenos Aires is the capital, and largest city, of Argentina, currently the second-largest metropolitan area in South America, after São Paulo. It is located on the southern shore of the Río de la Plata, on the southeastern coast of the South American continent. The city of Buenos Aires is not part of Buenos Aires Province, nor is it its capital; rather, it is an autonomous federal district. Greater Buenos Aires is the fourth-largest conurbation in Latin America, with a population of around 13 million. Buenos Aires is considered as the richest city in South America and the Southern Hemisphere and an Alpha World City listed by the Loughborough University group's (GaWC) 2008 inventory.
Buenos Aires (English: Fair Winds or Good Air) was originally named after the sanctuary of "Nostra Signora di Bonaria" (Italian for "Our Lady of Bonaria") in Cagliari, Sardinia. In the 1994 constitution the city became autonomous, hence its formal name: Ciudad Autónoma de Buenos Aires, in English, Autonomous City of Buenos Aires. People from Buenos Aires are called porteños (people of the port).
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