It is the site of the Roman fortBeroe in the Roman province of Moesia and part of the defensive frontier system of the Limes Moesiae along the Danube.
The Beroe archaeological site is on the bank of the branch of the Danube River, 3 km south of Ostrov village. The first historical reference related to the fortress dates to the 2 century AD, the fort being inhabited until the early 7 century.
^Nicolae Buzgar, Raman study of the brownish-yellow pigment from a Roman Basilica (Dobrogea, Romania – 4th – 6th century A.D.), Analele Stiintifice ale Universitatii “Al. I. Cuza” din Iasi, Seria Geologie 57 (2) (2011) 15–18 http://geology.uaic.ro/auig/
