Born in the 1930s as Villaggio Operaio E42, to house the workers employed in the construction of the World Expo 42, and abandoned during the Second World War, in the postwar period the borough remained uninhabited, until in 1947 twelve families of julian refugees settled in the area around the current Piazza Giuliani e Dalmati and renamed the settlement Villaggio Giuliano.

During the ceremony, in the little chapel of the neighborhood it was celebrated the first wedding of the community, between Armando Chioggia, native of Fiume, and the Roman girl Fernanda Tombesi, symbolizing the union of the refugees with the local citizens.

To the south, it borders with Zona Castel di Leva (Z. XXIII), whose boundary is marked by a portion of the Grande Raccordo Anulare.

The majority of the streets and squares are dedicated to prominent Julian, Istrian and Dalmatian personalities and to historical events that occurred to that geographical area, e.g. Largo Vittime delle Foibe Istriane, Largo Eccidio di Malga Bala (commemorating twelve policemen of the GNR killed in 1944 by slovene partisans on the Malga Bala plateau) or Parco Caduti per Trieste (commemorating people killed by the Anglo-American police during an irredentist turmoil on 5 and 6 November 1953).

The toponyms of the quartiere can be categorized as follows: The 1962 movie The Police Commissioner, by Alberto Sordi, was mainly shot in EUR and in Giuliano-Dalmata.