Critical and writer uruguayan Jose Enrique Rodo (1871-1917), one of the great defenders of Spanish American cultural unity, lived a few days of summer 1916 in Barcelona, on his way to Italy, where Argentine correspondent cover weekly magazine Caras y Caretas the development of the Great War. His time at Barcelona, land of their ancestors, led him to write three reports of the city and the problem of nationalism, would send Buenos Aires. The througghness of the essayist took him to penetrate the innermost supporters of nationalism, to try to understand feel, and move to America the reality he saw as a problem of paramount importance in the social and political life of both Spain and Catalonia.