Italia. Toscana. Pisa. 08.10.2025. escursione.

Pisa (/ˈpiːzə/ PEE-zə; Italian: [ˈpiːza] ⓘ or [ˈpiːsa]) is a city and comune (municipality) in Tuscany, Central Italy, straddling the Arno just before it empties into the Ligurian Sea. It is the capital city of the Province of Pisa. Although Pisa is known worldwide for the Leaning Tower of Pisa, the city contains more than twenty other historic churches, and several medieval and Renaissance palaces, mostly facing each other on the avenues along the Arno ("Lungarno"). Much of the city's architecture was financed from its history as one of the Italian maritime republics.

The city is also home to the University of Pisa, which has a history going back to the 12th century, the Scuola Normale Superiore di Pisa, founded by Napoleon in 1810, and its offshoot, the Sant'Anna School of Advanced Studies.
Most believe the hypothesis that the origin of the name Pisa comes from Etruscan and means 'mouth', as Pisa is at the mouth of the Arno river.

Although throughout history there have been several uncertainties about the origin of the city of Pisa, excavations made in the 1980s and 1990s found numerous archaeological remains, including the fifth century BC tomb of an Etruscan prince, proving the Etruscan origin of the city, and its role as a maritime city, showing that it also maintained trade relations with other Mediterranean civilizations.

Ancient Roman authors referred to Pisa as an old city. Virgil, in his Aeneid, states that Pisa was already a great center by the times described; and gives the epithet of Alphēae to the city because it was said to have been founded by colonists from Pisa in Elis, near which the Alpheius river flowed. The Virgilian commentator Servius wrote that the Teuti founded the town 13 centuries before the start of the common era.

The maritime role of Pisa should have been already prominent if the ancient authorities ascribed to it the invention of the naval ram. Pisa took advantage of being the only port along the western coast between Genoa (then a small village) and Ostia. Pisa served as a base for Roman naval expeditions against Ligurians and Gauls. In 180 BC, it became a Roman colony under Roman law, as Portus Pisanus. In 89 BC, Portus Pisanus became a municipium. Emperor Augustus fortified the colony into an important port and changed the name to Colonia Iulia obsequens.

Pisa supposedly was founded on the shore, but due to the alluvial sediments from the Arno and the Serchio, whose mouth lies about 11 km (7 mi) north of the Arno's, the shore moved west. Strabo states that the city was 4.0 km (2.5 mi) away from the coast. Currently, it is located 9.7 km (6 mi) from the coast. However, it was a maritime city, with ships sailing up the Arno. In the 90s AD, a baths complex was built in the city.
During the last years of the Western Roman Empire, Pisa did not decline as much as the other cities of Italy, probably due to the complexity of its river system and its consequent ease of defence. In the seventh century, Pisa helped Pope Gregory I by supplying numerous ships in his military expedition against the Byzantines of Ravenna (what "military expedition by Pope Gregory against the Byzantine Empire"[citation needed]): Pisa was the sole Byzantine centre of Tuscia to fall peacefully in Lombard hands, through assimilation with the neighbouring region where their trading interests were prevalent. Pisa began in this way its rise to the role of main port of the Upper Tyrrhenian Sea and became the main trading centre between Tuscany and Corsica, Sardinia, and the southern coasts of France and Spain.
After Charlemagne had defeated the Lombards under the command of Desiderius in 774, Pisa went through a crisis, but soon recovered. Politically, it became part of the duchy of Lucca. In 860, Pisa was captured by vikings led by Björn Ironside. In 930, Pisa became the county centre (status it maintained until the arrival of Otto I) within the mark of Tuscia. Lucca was the capital but Pisa was the most important city, as in the middle of tenth century Liutprand of Cremona, bishop of Cremona, called Pisa Tusciae provinciae caput ("capital of the province of Tuscia"), and a century later, the marquis of Tuscia was commonly referred to as "marquis of Pisa". In 1003, Pisa was the protagonist of the first communal war in Italy, against Lucca. From the naval point of view, since the ninth century, the emergence of the Saracen pirates prompted the city to expand its fleet. In the following years, this fleet gave the town an opportunity for more expansion. In 828, Pisan ships assaulted the coast of North Africa. In 871, they took part in the defence of Salerno from the Saracens. In 970, they gave also strong support to Otto I's expedition, defeating a Byzantine fleet in front of Calabrese coasts.
The power of Pisa as a maritime nation began to grow and reached its apex in the 11th century, when it acquired traditional fame as one of the four main historical maritime republics of Italy (Repubbliche Marinare)....