Civitas Classis

Civitas Classis is the ancient port city of Ravenna, Italy, situated near the head of the Adriatic coast. Named after the Latin word for fleet, it served as the Roman Empire's primary naval base in the Adriatic and eastern Mediterranean for nearly five hundred years. Beyond its military function, it was a major commercial hub linking northern Italy with the eastern provinces. Today, the site is an inland archaeological area and museum complex, where the Classis Ravenna Museum presents the millennial history of the city and its territory from Etruscan-Umbrian origins through the early Middle Ages.

During the Roman Republic, the area functioned as a small commercial and fishing harbor. Between 35 and 12 BC, Octavian established the harbor as a home port for the Roman navy, constructing a military base on stilts in a lagoon surrounded by marshes, making it impregnable from land. The base was initially built of large oak beams, supplemented with ceramic fragments in the 1st century CE, and rebuilt with bricks by the 2nd century. A 35 km aqueduct built by Emperor Trajan resolved the site's lack of fresh water. The fleet, reportedly numbering 250 ships and 10,000 marines, secured the Adriatic and eastern Mediterranean, largely eliminating piracy. Following the crisis of the third century, the harbor silted and declined, but it experienced a resurgence after Ravenna became the Western imperial capital in 402, gaining fortified walls. The naval base was dissolved around 324, likely due to civil war and financial constraints. Under the Ostrogothic king Theodoric, Classe was restored. It later endured multiple sackings by the Lombards in the 6th and 8th centuries, and was ultimately abandoned in the 9th century after Saracen pirates sacked the basilica of Sant'Apollinare.

The Classis Ravenna Museum offers a chronological and thematic journey through the history of Ravenna and its port. Its exhibition is based on over 600 historical artifacts, ranging from everyday items such as amphorae, ceramics, and coins to significant artistic works including statues and mosaics. The collection covers the Etruscan-Umbrian origins, the Roman era, the Gothic phase, the Byzantine age, and the early Middle Ages. Thematic sections explore the imperial fleet, navigation, artistic production, and housing arrangements. Recently added sections cover residential urban planning, everyday life, and places of worship, featuring almost 150 square meters of previously unpublished mosaics alongside architectural elements to illustrate public and private life when Ravenna was an imperial capital.

Among the notable holdings of the museum and the surrounding archaeological park are the architectural and artistic remains of the ancient port city. The museum houses the large Mosaico dell'Onda, a modern mosaic by master-mosaicist Paolo Racagni that symbolizes Ravenna's historical ties to the sea. The archaeological area itself preserves sections of warehouses, docks, roads, and drainage systems. Over 50 percent of the imported ceramics recovered from excavations originated from the eastern Mediterranean, confirming the port's role in long-distance trade. The most prominent surviving historical structure in the area is the 6th-century Basilica of Sant'Apollinare in Classe, a UNESCO World Heritage site that was the centerpiece of Christian worship in the region.

The Classis Ravenna Museum is housed in the former Classe Sugar Factory, an early 1900s monument of industrial architecture that underwent a major restoration to become a cultural hub. The museum entrance features a ramp leading visitors past the Mosaico dell'Onda. The building is surrounded by an oasis of green, connecting it to the broader Classe Archaeological Park. The ancient site of Classe itself was originally positioned within a lagoon system, connected to the Adriatic Sea by an artificial channel and to Ravenna by the Fossa Augusta canal and the Via Caesaris road. Over the centuries, sediment from the Po River and coastal currents filled the lagoon, advancing the coastline by several kilometers and transforming the once maritime landscape into inland fields.

The Classis Ravenna Museum is located at Via Classense 29 in Ravenna, Italy. It operates daily from 10:00 to 15:30. The museum serves as a gateway to the Classe Archaeological Park, from which visitors can easily reach the Basilica of Sant'Apollinare in Classe and the archaeological area of the Ancient Port. Booking can be arranged via the RavennAntica Foundation. The museum, which opened in 2018, received the Riccardo Francovich award in 2021 for its synthesis of scientific rigor and public communication. It offers intensive educational activities and themed exhibits integrated with school programs, utilizing multimedia displays, video, and three-dimensional reconstructions to illustrate the ancient landscape.