The Seven and a Half Days Revolt or Sicilian: "Rivorta dû 7 e menzu" Italian: "Rivolta del sette e mezzo" was an uprising in Palermo lasting from the 16th to the 22nd of September 1866. Its name comes from its duration of seven and a half days. It is usually discussed within the context of post unification brigandage in the Italian mezzogiorno.
The Seven and a Half Days Revolt Wikipedia
There was a violent anti-government demonstration, which took place at the end of the third war of independence, organized by disappointed former partisans (who had joined the 'Thousand' after their landing, or had followed Garibaldi in Aspromonte in 1862) and southern army veterans, with Bourbon and Republican partisans, who together formed a town council.
Among the causes: the growing misery of the population; cholera and its 3,977 victims in the city and district; the chauvinism of Northern state officials, who considered "the people of Palermo almost barbarians"; and the heavy police measures and vexatious constraints placed on the populace.
Thousands of people rose up, many armed, even from neighboring villages. Nearly 4,000 rebels attacked the prefecture and police headquarters, killing the inspector general of the Public Security Guard Corps. The city remained in the hands of insurgents and the revolt also spread in the following days to neighboring towns including Monreale and Misilmeri: it was estimated that the total number of armed insurgents was about 35,000 in the province of Palermo. In those days of skirmishing they killed twenty-one policemen and ten public security guards. Palermo remained in the hands of insurgents for seven days.
The Italian government decided to proclaim a state of siege and to institute harsh repression against the people of Palermo . It had to re-deploy the army commanded by Raffaele Cadorna, while ships of the 'Royal Navy', with the King's flagship Portugal, bombed the city. After the landing of the footsoldiers of the 'Royal Navy' to quell the revolt, many of the rioters were burned alive in house to house fighting that destroyed Palermo, which required about 40,000 soldiers to be re-conquered. While more than 200 military were dead, including 42 police, there is no official number of civilian casualties among the populace.
2,427 civilians were arrested, 297 were prosecuted and 127 convicted.
Giuseppe Maggiore devoted his historical novel, Sette e mezzo (Seven and a Half), to this affair; it is also mentioned in the foreword of Biografia, Maggiore's biography written by his son and edited by Andrea Camilleri.