The Geto-Dacian settlement was conquered by the Romans and transformed into a frontier fort. The site was mentioned by Ptolemy. Located in the centre of an arc made by the Danube around Macin, Galați and Gura Prutului, the Roman fort of Dinogetia-Garvãn had initially been a castellum (a small fortress), thereby playing a role in the defensive system on the Lower Danube. nearby Roman forts were those from Barboşi (Galați County) and Troesmis (Tulcea County). Having been of great importance in Constantine the Great's time, the fort was reinforced since the time of Diocletian. In Anastasius's and Justinian's time some structures were added to the stronghold. But by the end of the 2nd century AD, when the great barbarian invasions had begun, Dinogetia had grown in importance, especially after the abandonment by the Romans of the Dacian province. Its strategic position in the north-western corner of Dobrudja gave the fortress an important role in the defensive system of the province.

After a period of rebuilding during the Severan period, in the 3rd century Dinogetia was again a target for the barbarian invaders. After the abandonment of Dacia, the strategic importance of the site had increased. Aurelian, Probus and Diocletian initiated a policy of fortification of the entire Danubian lines, Dinogetia included. During the Late Antiquity Dinogetia had a key role in the defensive system of the Roman province. First Anastasius, then Justinian reinforced the fortress's walls. The attack of the Avars/Kutrigurs under Zabergan's command in 559 had disastrous consequences for the stronghold.^{[citation needed]}

Archaeological research has uncovered ruins of a large house, a Roman bath, a church, a basilica and a graveyard outside the wall. These ruins have been heavily disrupted, though, because a feudal site had been built over the Roman one.

The Diocletian constructed wall (c. 3 m wide) has fourteen horseshoe-shaped towers.

• Buildings located on the Dinogetia Site:
  • praetorium
  • the ruins of a large house
  • 4 c basilica
  • 4 c ruins of a Roman bath
  • 9 C church
• Stamped Bricks

From the Later Roman Empire there are registered at Dinogetia bricks stamped with the mark of Legio I Iovia (Scythica) and the presence of Gothic federates as well. Also, the 4th century witnessed the building of "the house of the commander" (domus), as well as the baths, the latter perhaps having been built even earlier, according to the latest archaeological finds. Also, written sources, such as Notitia Dignitatum, certify some Milites Scythici (NDOr, XXXIX, 24), thus confirming the archaeological evidence. In the ecclesiastical sources there are registered Christian martyrs dated in the reign of Licinius, especially from the army, thus certifying the Christianization of the area. Other army units that were stationed at Dinogetia include: Legio V Macedonica, Cohors I Cilicum, Cohors II Mattiacorum, cl. fl. Moesica (2nd century), Legio I Iovia (4th century)

The fort had been inhabited until the end of the 6th or the beginning of the 7th century when, in the context of Phokas's rebellion, the entire lines of Lower Danube had collapsed under the pressure of Slav tribes. In this context, Dinogetia also was abandoned as a military strongpoint. The fort was rebuilt and became the siege of a Byzantine garrison after the successful campaigns of the emperor Ioannes Tzimiskes (969-976) against the Kievian Russians, when Dobruja was again incorporated to the Empire. The presence of Byzantine troops is certified until the 12th century, when Dinogetia was gradually deserted and finally abandoned perhaps in 1186.

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  Public Baths
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  tower
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  Site Panoramic View
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  Byzantine Church
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  Tower

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