Sentinum

Sentinum was an ancient Roman town located about one kilometre south of present-day Sassoferrato in the Marche region of Italy. Today its remains are preserved as an archaeological park, with two main visitable areas, the forum/urban baths and the suburban baths. The site is significant both for its role in major Roman military history and for the exceptional quality of its archaeological finds, which include some of the most important Roman mosaics discovered in Italy. A local museum in Sassoferrato houses many finds from the site, while the most famous discoveries have been dispersed to major European collections.

The original settlement was probably of Umbrian origin before Senone Gauls displaced the inhabitants around 390 BC. The town gained lasting fame as the site of the decisive Battle of Sentinum in 295 BC during the Third Samnite War, when Roman forces defeated a coalition of Samnites and Senones despite heavy losses. In 283 BC the Romans expelled the Senones from the region. During the civil wars of the 40s BC, Sentinum sided with Mark Antony, but in 41 BC Quintus Salvidienus Rufus, leading troops for Octavian, captured and destroyed the town. It was soon rebuilt with a Hippodamian orthogonal plan and Augustan walls in opus vittatum over Roman concrete, flourishing subsequently as a municipium under the Empire. Civic life collapsed during the invasion of Alaric I, and the last dated inscription comes from 343 AD. The population eventually moved to nearby hills, where around 1000 AD the Castrum Saxum Ferratum was erected, the precursor to modern Sassoferrato. Renaissance humanists including Cyriacus of Ancona and Flavio Biondo took interest in the ruins, but systematic investigation only began much later.

The archaeological record of Sentinum demonstrates considerable wealth, particularly through the large number of mosaics found in public and private buildings both inside and outside the walls. Excavations have yielded city gates, roads, cisterns, house remains, and numerous inscriptions from the second half of the 3rd century AD. Notable among the documentary finds are three important tabulae patronatus, records of legal appointments of official patrons. The mosaic evidence spans from the late Republican period through the 3rd century AD, with both black-and-white and polychrome examples. The site has also produced sculptural finds including two marble heads, one from the Julio-Claudian era and a very fine head of a young ephebe. Mithraic materials including reliefs of animals representing stages of initiatory progression and Mithraic inscriptions have been recorded.

The most celebrated find from Sentinum is the mosaic of Aion and Terra, discovered in 1806 in the insula del Pozzo and now preserved in the Glyptothek, Munich. Dating to the reign of Antoninus Pius (138-161 AD), this polychrome mosaic depicts Aion, personification of eternal time, standing within the circle of the Zodiac, and Terra, Mother Earth, seated with the Four Seasons. The iconography reflects late Stoic concepts of cyclical, eternal return associated with the Saeculum Aureum. A companion polychrome mosaic with the central emblem of the god Ocean was found in an adjacent room but survived only in watercolour documentation. In 1922 a large mosaic with marine monsters (14 by 9.80 metres) was removed to the National Archaeological Museum of Ancona, where it was later damaged by bombing in 1943; Superintendent G. Moretti attributed its stylistically varied figures to multiple hands in the second half of the 2nd century AD with later repairs. Other significant dispersed finds include the Boston Cameo, now at the Museum of Fine Arts, Boston, and an equestrian statue that entered the Weiller collection. The Rape of Europa mosaic is preserved at the Museo Civico Archeologico di Sassoferrato. A polychrome geometric mosaic from the insula del Pozzo, documented by a colour drawing at the time of its 1956 discovery, remains buried.

The archaeological park of Sentinum comprises two main zones, Civita and Santa Lucia, connected by a footbridge. In the Civita area, visitors can see remains of the urban baths, stretches of two small paved streets, the cardo maximus and decumanus, and a metalworking workshop. The Santa Lucia area contains a monumental extra-urban building identified as a suburban spa. The town was laid out on a Hippodamian orthogonal plan with Augustan walls in opus vittatum over Roman concrete; the foundations of the city walls are preserved. The public baths inside the walls, located along cardo B, date from the late Republican era and underwent several reconstructions into the early 3rd century AD. This complex featured a large rectangular swimming pool surrounded by a peristyle, a frigidarium with an apse decorated with polychrome marbles, a tepidarium, and a calidarium along the southern and eastern sides. More recent excavations in 2005-2008 uncovered a large circular fountain at the crossroads of the cardo maximus and decumanus maximus.

The archaeological park of Sentinum is situated in low-lying plains about one kilometre east of Sassoferrato in the Marche region of Italy, accessible as a protected archaeological site. The two zones, Civita and Santa Lucia, are linked by a footbridge and can be visited today. The local museum in Sassoferrato contains many finds from the site. The ruins were first identified in 1890, with systematic excavations conducted that year and in 1891 by Edoardo Brizio with Raniero Mengarelli, followed by campaigns led by Laura Fabbrini from 1954 to 1960, by Luisa Brecciarioli Taborelli in 1974, and most recently by teams from the University of Genoa under Maura Medri and the University of Urbino under Sergio Rinaldi Tufi between 2002 and 2007, which included magnetometric surveys to refine the urban plan and identify the forum.