Administrative divisions:
15 regions (regioni, singular - regione) and 5 autonomous regions (regioni autonome, singular - regione autonoma)
regions: Abruzzo, Basilicata, Calabria, Campania, Emilia-Romagna,
Lazio (Latium), Liguria, Lombardia, Marche, Molise, Piemonte
(Piedmont), Puglia (Apulia), Toscana (Tuscany), Umbria, Veneto
(Venetia)
autonomous regions: Friuli-Venezia Giulia; Sardegna (Sardinia); Sicilia (Sicily); Trentino-South Tyrol, also known as Trentino-Alto Adige (Italian), Trentino-Suedtirol (German); Aosta Valley, also known as Valle d'Aosta (Italian), Vallee d'Aoste (French)
Independence:
17 March 1861 (Kingdom of Italy proclaimed; Italy was not finally unified until 1870)
National holiday:
Republic Day, 2 June (1946)
Constitution:
passed 11 December 1947, effective 1 January 1948; amended many times