Siena

Siena, like other Tuscan hill towns, was first settled in the time of the Etruscans (c. 900–400 BC) when it was inhabited by a tribe called the Saina. The Etruscans were an advanced people who changed the face of central Italy through their use of irrigation to reclaim previously unfarmable land, and their custom of building their settlements in well-defended hill forts. A Roman town called Saena Julia was founded at the site in the time of the Emperor Augustus. The first document mentioning it dates from AD 70. Some archaeologists assert that Siena was controlled for a period by a Gaulish tribe called the Senones.

Prato

Ancient times
Archaeological findings have proved that Prato's surrounding hills were inhabited since Paleolithic times. The plain was later colonized by the Etruscans. In 1998 remains of a previously unknown city from that civilization were discovered in the neighbourhood, at Gonfienti (Prato) near Campi Bisenzio: it was of medium size and it was already a centre for wool and textile industry. According to some scholars, it could be the mythical Camars. The Etruscan city was inhabited until the 5th century BC, when, for undisclosed reasons, it decayed; control of the area was later shifted to the Romans, who had their Via Cassia pass from here, but did not build any settlement.

Bergamo

Bergamo occupies the site of the ancient town of Bergomum, founded as a settlement of the Celtic tribe of Cenomani. In 49 BC it became a Roman municipality, containing c. 10,000 inhabitants at its peak. An important hub on the military road between Friuli and Raetia, it was destroyed by Attila in the 5th century.

Bergamo in the year 1450
From the 6th century Bergamo was the seat of one of the most important Lombard duchies of northern Italy, together with Brescia, Trento, and Cividale del Friuli: its first Lombard duke was Wallaris. After the conquest of the Lombard Kingdom by Charlemagne, it became the seat of a county under one Auteramus (d. 816). An important Lombardic hoard dating from the 6th to 7th centuries AD was found in the vicinity of the city in the nineteenth century and is now in the British Museum.

From the 11th century onwards, Bergamo was an independent commune, taking part in the Lombard League which defeated Frederick I Barbarossa in 1165. The local Guelph and Ghibelline factions were the Colleoni and Suardi, respectively. Feuding between the two initially caused the family of Omodeo Tasso to flee north c. 1250, but he returned to Bergamo in the later 13th century to organize the city's couriers: this would eventually lead to the Imperial Thurn und Taxis dynasty generally credited with organizing the first modern postal service. From 1264, Bergamo was intermittently under the rule of Milan. In 1331, it gave itself to John of Bohemia, but the Milanese Visconti reconquered it.

Early modern
After a short conquest by the Malatesta in 1407, in 1428 it fell under the control of the Venetian Republic, remaining part of it until 1797. Between 1797 and 1815, Bergamo and its territory were included in the political entities born in North Italy during the French and Napoleonic dominion. Notably, the Venetians fortified the higher portion of the town (see Main sights section).

Late modern and contemporary
In 1815, it was assigned to the Austrian Empire. Giuseppe Garibaldi freed it in 1859 during the Second Italian War of Independence, when Bergamo became part of the Kingdom of Italy. For its contribution to "Il Risorgimento" the city is also known as "Città dei Mille" ("City of the Thousand"). During the 20th century Bergamo became one of Italy's most industrialized cities. It is also one of the few Italian cities that did not suffer major destruction during World War II.

L'Aquila

The city's construction was begun by Frederick II, Holy Roman Emperor and King of Sicily, out of several already existing villages (ninety-nine, according to local tradition; see Amiternum), as a bulwark against the power of the papacy. The name of Aquila means "Eagle" in Italian. Construction was completed in 1254 under Frederick's son, Conrad IV of Germany. The name was switched to Aquila degli Abruzzi in 1861, and L'Aquila in 1939. After the death of Conrad, the city was destroyed by his brother Manfred in 1259, but soon rebuilt by Charles I of Anjou, its successor as king of Sicily. The walls were completed in 1316.

La Spezia

The area of La Spezia has been settled since pre-historic times. In Roman times the most important centre was Luni, now located in the vicinity of Sarzana (city near La Spezia). Being the capital of the short-lived Niccolò Fieschi Signoria in the period between 1256 and 1273, inevitably linked with the Genoese vicissitudes until the fall of the Republic of Genoa, it grew and changed to develop following the lines of the Ligurian capital.