Hadrian's Wall: One of the most noted Roman antiquities of Great Britain, constructed by Hadrian between the Solway Firth and the mouth of the Tyne, for purposes of defense. The work has been ascribed to Severus and others, "but after a long debate the opinion now prevails that the whole system of defense bears the impress of a single mind, and that the wall and its parallel earth-works, its camps, roads, and stations, were designed and constructed by Hadrian alone."

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