Spirano borders the following municipalities: Brignano Gera d'Adda, Cologno al Serio, Comun Nuovo, Lurano, Pognano, Urgnano, Verdello.

With the Roman domination, the country assumed a well-defined physiognomy which had on its territory a stable military camp that exploited the strategic position of the village, located at the intersection of two important streets.

However, a few centuries later the same road became the habitual route for the barbarian hordes from North-Eastern Europe, bringing destruction and terror among the local inhabitants.

During Middle Ages, Spirano was at the center of fratricidal disputes between Guelphs and Ghibellines with clashes that led to tragic results, as in 1312 when the village was plundered and devastated.

A castle was built during the XIII century, that characterized the life of the village for a long time; it had defensive functions and it was the residence of the Suardi family, who managed the fate of the town for several years.

The Serenissima carried out numerous interventions aimed at improving social and working conditions, tilling land and building irrigation canals.

Among these, there was the Bergamasque ditch, mainly used to establish definitively the territorial boundaries of the land state of Venice with the Duchy of Milan.

[3][circular reference] According to some sources, Asperianum was the ancient name of the settlement, and it probably indicated a harsh, disastrous, inaccessible place, or rather from the town of the Asperij.

It is then re-proposed in the note ecclesiarum document commissioned by Bernabò Visconti in 1360 as an indication of the income and taxes imposed on churches.

GERVASIO E PROTASIO TUTELIS SUIS AUGUSTUM HOC TEMPLUM OPPIDANI EXTRUXERUNT DANIEL GIUSTINIANUS EP.US BERG.

ET CO. SOLEMNI SACRAVIT RITU P.ma DOMINICA SEPTEMBRIS ANNO MDCLXVII QUI DIES ANNIVERSARIA CELEBRITATE RECOLETUR" .

The rural chapel of the Morti dell'Arca is located on the border between Spirano and Cologno al Serio, near the Fontanili del Consacolo, and dates back to the first half of the 19th century.

Currently the church is surrounded by a large equipped recreational area and by the San Rocco fountain immersed in wooded strips; it is also a destination for pilgrimages.

Several dead bodies were buried in this area until the early 1800s, a period in which, following the Napoleonic edict of Saint-Cloud of 12 June 1804, the construction of the Campo Santo was arranged outside the town.

On 29 October 1809, it was blessed by the parish priest Angelo Allegreni delegated by the bishop Paolo Dolfin and the first body was buried a few months later.

In the beginning, the cemetery was simply a fairly bare and fenced piece of land; only a year after its opening, the first noble funeral chapel was built, that of the Adelasio family.

In Piazza Ere, for example, emerges a quadrangular tower assembled with pebbles which belonged to the defensive system built between the 13th and 14th centuries and which comprises other more complex structures including the Civic Center.