Topalu () is a commune located on the right bank of the Danube in ConstanÃÂa County, Northern Dobruja, Romania.
The commune includes two villages:
At the 2011 census, Topalu had 1,707 Romanians (99.94%), 1 others (0.06%).
Capidava is depicted in the form Calidava/Calidaua in Segmentum VIII of Tabula Peutingeriana (1st-4th century AD) on a Roman road between Axiopolis and Carsium. The map provides accurate data on the distances between Axiopolis, Capidava and Carsium. These distances coincide with the distances between the present localities of Hinog - Capidava and Capidava - HârÃÂova. This is also verified by the discovery of military marking pillar at Seimenii Mici that indicates the distance of 18,000 feet (27 km) from Axiopolis to Capidava.
The village Capidava is the site of the fortified Geto-Dacian center with the same name, Capidava.
After the Roman conquest of Dacia it became a Roman city and castra in the province of Scythia Minor (modern Dobruja).
Capidava is a Getic toponym, meaning the "curve fortified settlement".