Scotland during the Roman Empire centuries. The most enduring Roman legacy may be that created by Hadrian's Wall. Its line approximates the border between modern Scotland and England and it created a distinction between the northern third and southern two-thirds of the island of Great Britain that plays a part in modern political debate. This is probably coincidental however, as there is little to suggest its influence played an important role in the early Medieval period after the fall of Rome. The 9th Spanish Legion participated in the Roman invasion of Britain, suffering losses under Quintus Petillius Cerialis in the rebellion of Boudica of 61,
City Wall and Moat wooden towers. Attackers had to construct bridges from their wooden towers in order to reach the top of the wall, thus exposing themselves to the defenders of the city. Archaeologists have not been able to provide a precise date for the construction of the city wall and its moat, although historical chronicles suggest the 9th century. Both wall and moat were built atop the Phoenician cemetery, and cut across the ruins of the Phoenico-Persian, Hellenistic and Roman residences. In the late 19th century, the city wall and its moat lost their strategic significance. By the early 1900s, the wall had