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according to wiki:
http://en.wikipedia.org/wiki/Buenos_Aires
The city of Buenos Aires was first established as Ciudad de Nuestra Señora Santa María del Buen Ayre (literally "City of Our Lady Saint Mary of the Fair Winds") on 2 February 1536 by a Spanish expedition led by Pedro de Mendoza. The city founded by Mendoza was located in what is today the San Telmo district of Buenos Aires, south of the city center.

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15y ago

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