that later spread in Europe. Early Modern Main articles: Italian Renaissance, Italian Wars, and Kingdom of Italy (Napoleonic)

formation of the Papal States in central Italy. Until the 13th century, Italian politics were dominated by the relations between the Holy Roman Emperors and the Papacy, with most of the Italian city-states siding for the former (Ghibellines) or for the latter (Guelphs) from momentary convenience.[41]
It was during this chaotic era that Italy saw the rise of a peculiar institution, the medieval commune. Given the power vacuum caused by extreme territorial fragmentation and the struggle between the Empire and the Holy See, local communities sought autonomous ways to restore law and order.[42] In 1176 a league of city-states, the Lombard League, defeated the German emperor Frederick Barbarossa at the Battle of Legnano, thus ensuring effective independence for most of northern and central Italian cities. In coastal and southern areas, the Maritime Republics, the most notable being Venice, Genoa, Pisa and Amalfi, heavily involved in the Crusades, grew to eventually dominate the Mediterranean and monopolize trade routes to the Orient.[43]
In the south, Sicily had become an Islamic emirate in the 9th century, thriving until the Italo-Normans conquered it in the late 11th century together with most of the Lombard and Byzantine principalities of southern Italy.[44] Through a complex series of events, southern Italy developed as a unified kingdom, first under the House of Hohenstaufen, then under the Capetian House of Anjou and, from the 15th century, the House of Aragon. In Sardinia, the former Byzantine provinces became independent states known as Giudicati, although some parts of the island were under Genoese or Pisan control until the Aragonese conquered it in the 15th century. The Black Death pandemic of 1348 left its mark on Italy by killing perhaps one third of the population.[45][46] However, the recovery from the plague led to a resurgence of cities, trade and economy which allowed the bloom of Humanism and Renaissance, that later spread in Europe.
Early Modern
Main articles: Italian Renaissance, Italian Wars, and Kingdom of Italy (Napoleonic)


Leonardo da Vinci, the quintessential Renaissance man (self portrait, ca. 1512).
In the 14th and 15th centuries, northern-central Italy was divided into a number of warring city-states, the rest of the peninsula being occupied by the larger Papal States and the Kingdom of Sicily, referred to here as Naples. The strongest among these city-states gradually absorbed the surrounding territories giving birth to the Signorie, regional states often led by merchant families which founded local dynasties. War between the city-states was endemic, and primarily fought by armies of mercenaries known as condottieri, bands of soldiers drawn from around Europe, especially Germany and Switzerland, led largely by Italian captains.[47] Decades of fighting eventually saw Florence, Milan and Venice emerged as the dominant players that agreed to the Peace of Lodi in 1454, which saw relative calm brought to the region for the first time in centuries. This peace would hold for the next forty years.
The Renaissance, a period of vigorous revival of the arts and culture, originated in Italy thanks to a number of factors, as the great wealth accumulated by merchant cities, the patronage of its dominant families like the Medici of Florence,[48][49] and the migration of Greek scholars and texts to Italy following the Conquest of Constantinople at the hands of the Ottoman Turks.[50][51][52] The Italian Renaissance peaked in the mid-16th century as foreign invasions plunged the region into the turmoil of the Italian Wars. The ideas and ideals of the Renaissance soon spread into Northern Europe, France, England and much of Europe. In the meantime, the discovery of the Americas, the new routes to Asia discovered by the Portuguese and the rise of the Ottoman Empire, all factors which eroded the traditional Italian dominance in trade with the East, caused a long economic decline in the peninsula.
Following the Italian Wars (1494 to 1559),