The Roman and Roman-Byzantine fortress of Carsium was built over a Getae fortification, starting from the second half of the first century AD. In the early 2nd century AD, during the Dacian wars, in 103 AD, Emperor Trajan reinforced the fortress with stone walls. The largest number of milestone columns (Roman road blocks) in Dobrogea has been recovered from Hârșova: ten so far. This demonstrates that during ancient times the authorities have permanently repaired and maintained in optimum conditions the roads that assured the connection, either along the Danubian limes or other settlements within the province. Hence, the ancient towns importance as a trade and transit area, as is demonstrated by the exceptional discoveries made over time. During the last period of its existence, the city was the battlefield of bloody clashes between the Ottoman and Tsarist Empire and has been subject to much destruction. By the Peace of Adrianople, the Sublime Porte is forced to demolish the fortifications on the right bank of the Danube, and the fortress is blown up. Modern Hârșova is built in its place.