Diana Fort

It was built in the Tiberian-Claudian age as part of the Roman Moesian Limes frontier system of linked forts along the Danube. After its destruction during Domitian's Dacian War, it was rebuilt in 100 AD during preparation for Trajan's Dacian Wars with a larger area of 1.7 ha (compared to the earlier 1.04 ha) and with the main buildings in stone. It then became also known as Statio Cataractarum Dianae (Diana Cataracts Station) as it protected the entrance to the canal dug in preparation for the wars to avoid cataracts in the main river course. The canal was more than 3 km long and 40 m wide, an achievement celebrated on the Imperial Tablet found near the fort.

The fort measured 172 x 100 m and had semicircular towers. 150 m west of it was a civilian settlement, and on the eastern side an ancient cemetery; an aqueduct has also been discovered.

Modifications were made at the end of the 3rd and beginning of the 4th century when additional towers were added towards the river for extra defence towards the Danube shores. In the mid 4th century the fort was damaged by the invading Huns and in 530 AD rebuilt by Emperor Justinian.

Garrison

The garrisons included detachments of Roman Moesian legions (V Macedonica, VII Claudia, IIII Flavia, XIII Gemina), as well as auxiliaries: Cohors VI Thracum and Cohors V Gallorum.