Public holidays in Italy are established by the Italian parliament and, with the exception of city or community patronal days, apply nationwide.
[3] The ceremony of the event organized in Rome includes the deposition of a laurel wreath as a tribute to the Italian Unknown Soldier at the Altare della Patria by the President of the Italian Republic and a military parade along Via dei Fori Imperiali in Rome.
The date was chosen by convention, as it was the day of the year in 1945 when the National Liberation Committee of Upper Italy (CLNAI) officially proclaimed the insurgency in a radio announcement, propounding the seizure of power by the CLNAI and proclaiming the death sentence for all fascist leaders (including Benito Mussolini, who was shot three days later).
[6] In particular, in 1977 National Unity and Armed Forces Day became a moveable feast, and celebrations occurred every first Sunday of November.
It is celebrated every 4 November, which is the anniversary of the armistice of Villa Giusti becoming effective in 1918 declaring Austria-Hungary's surrender.
Natale di Roma, historically known as Dies Romana and also referred to as Romaia, is the festival linked to the foundation of Rome, celebrated on 21 April.
From this date, the Roman chronology derived its system, known by the Latin phrase Ab Urbe condita, meaning "from the founding of the City", which counted the years from this presumed foundation.