Italy is a country in Southern Europe, South of Alps, covering all Italian Peninsula.
The questions tagged "Italy" should be related to modern-day Republic of Italy (since 1945), previously Kingdom of Italy (1861-1945), which was created by unification of smaller Italian states.
The questions related to medieval, Renaissance and later Italian states are also acceptable. For questions regarding Vatican and the Papal State consider adding the pope tag.
For the city of Venice, former Republic of Venice and its territories, use venice tag.
For the oldest country San Marino, an enclave in Italy, use tag san-marino.
The ancient Roman Empire questions should be tagged with roman-empire.