| Conflict: | Five Days of Milan |
| Partof: | the First Italian War of Independence |
| Date: | 18–22 March 1848 |
| Place: | Milan, Lombardy–Venetia (present-day Italy) |
| Coordinates: | 45.4669°N 9.19°W |
| Result: | Milanese revolt victorious[1]
|
| Commander1: | Carlo Cattaneo Gabrio Casati Luciano Manara [2] [3] [4] |
| Commander2: | Joseph Radetzky Ludwig von Wohlgemuth [5] [6] |
| Strength1: | 1,700 barricades armed with 600–650 firearms along with stones, bottles, clubs, pikes and swords [7] |
| Strength2: | 12,000 garrison[8] [9] |
| Casualties1: | 409–424 killed[10] [11] including 43 women and children 600+ wounded |
| Casualties2: | 181 killed[12] including 5 officers 235 wounded including 4 officers 150–180 captured |
| Native Name: | Governo provvisorio di Milano |
| Conventional Long Name: | Provisional Government of Milan |
| Common Name: | Milan |
| Era: | Revolutions of 1848 |
| Status: | City-state |
| Government Type: | Republic |
| Event Start: | Insurrection against Habsburg rule |
| Date Start: | 18 March |
| Year Start: | 1848 |
| Event End: | Radetzky withdraws to Quadrilatero |
| Date End: | 22 March |
| Year End: | 1848 |
| Event Pre: | Congress of Vienna grants Lombardy–Venetia to the Austrian Empire |
| Date Pre: | 9 June 1815 |
| Event Post: | Battle of Solferino wins Lombardy for Italy |
| Date Post: | 24 June 1859 |
| P1: | Kingdom of Lombardy–Venetia |
| Flag P1: | Flag of Kingdom of Lombardy-Venetia.svg |
| S1: | Kingdom of Sardinia |
| Flag S1: | Flag of Sardinia Kingdom (1848 - 1851).gif |
| Capital: | Milan |
| Leader1: | Carlo Cattaneo |
| Title Leader: | President |
| Common Languages: | Italian, Lombard |
The Five Days of Milan (pronounced as /it/) was an insurrection and a major event in the Revolutionary Year of 1848 that started the First Italian War of Independence. On 18 March, a rebellion arose in the city of Milan which in five days of street fighting drove Marshal Radetzky and his Austrian soldiers from the city.
In 1848, the Milanese launched an anti-Austrian campaign as early as 1 January.[13] On New Year's Day the Milanese started to boycott gambling and tobacco products, which were government monopolies that brought in over 5 million lire a year.[14] The boycott culminated in a bloody street battle on 3 January, when Austrian soldiers, in batches of three, were being insulted and pelted with stones by an angry crowd.[15] [10] The soldiers then gathered together in groups of a dozen and charged the crowd with swords and bayonets, killing five and wounding another 59. Radetzky confined his troops to barracks for five days.[15] The protests were over, but two months later, when news reached Milan of the uprising in Vienna and the fall of Metternich, the Milanese took to the streets again, on 18 March.[14]
thumb|right|Statuary at the base of the 1895 monument to the Five Days of Milan by Giuseppe Grandi.
Almost simultaneously with the popular uprisings of 1848 in the Kingdom of Lombardy–Venetia, on 18 March of that year, the city of Milan also rose up. This was the first evidence of how effective popular initiative, guided by those in the Risorgimento, was able to influence Charles Albert of Sardinia.
The Austrian garrison at Milan was well equipped and commanded by an experienced general, Joseph Radetzky von Radetz, who despite being over 80 years old, was energetic and rigid. Radetzky had no intention of yielding to the uprising.
However, the whole city fought throughout the streets, raising barricades, firing from windows and roofs, and urging the rural population to join them. The populace was backed by the archbishop and at least 100 priests joined in the fighting against the Austrians. A bust of Pope Pius IX was hoisted onto the barricades.[16] A provisional government of Milan was formed and presided over by the Italian: [[podestà]], Gabrio Casati and a council of war under Carlo Cattaneo. The Martinitt (orphanage children) worked as message runners to all parts of the town.
Radetzky saw the difficulty of resisting under siege in the city centre, but while afraid of being attacked by the Piedmontese army and peasants from the countryside, he preferred to withdraw after losing control of the Porta Tosa (now Porta Vittoria) to the rebels. On the evening of 22 March, the Austrians withdrew towards the "Quadrilatero" (the fortified zone bounded by the four cities of Verona, Legnago, Mantua and Peschiera del Garda), 120 km eastwards, taking with them several hostages arrested at the start of the uprising. Meanwhile, the rest of Lombard and Venetic territory was free.
In memory of these days, the official newspaper of the temporary government was called simply Il 22 marzo (22 March), which began publication on 26 March at the Palazzo Marino under the direction of Carlo Tenca.[17] A Monument to the Five Days of Milan by the sculptor Giuseppe Grandi was inaugurated in 1895 at what is now Porta Vittoria.
Almost a century later, in 1943, the uprising of Naples against WWII Nazi occupation was named The Four Days of Naples, in conscious emulation of the earlier Milan event.