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The documentation produced in the Viceroyalty of the Río de la Plata was collected and archived in Buenos Aires, the city which was its administrative centre. The (The National Archives) also contain colonial documentary collections from the Republics of Uruguay, Paraguay, Bolivia and a district in Peru ( (Governorship) of Puno). The documentation on the ports activity of Buenos Aires and Montevideo also provides knowledge about the political and commercial relations which existed between the Viceroyalty and the other countries of America, as well as with Europe and Africa