Science Fair Project Encyclopedia
The town, which was originally called Drobetae by the Romans, took its later name of Turns Seven, or the Tower of Severus, from a tower which stood on a small hill surrounded by a deep fosse. This was built to commemorate a victory over the Quadi and Marcomanni, by the Roman emperor Severus (222-235). Near Turnu Seven are the remains of the celebrated Trajan's bridge, the largest in the Roman Empire, built in 103 by the architect Apollodorus of Damascus. The river is about 4000 ft. broad at this spot. The bridge was composed of twenty arches supported by stone pillars, several of which are still visible at low water.
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