Hadrians Wall

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Hadrian's Wall Defensive fortification in n England, Erected (ad 122–36) on the orders of Roman Emperor Hadrian. It extended 118.3km (73.5mi), and was about 2.3m (7.5ft) thick and 1.8–4.6m (6–15ft) high. Forts were built along its length. Extensive stretches of the wall survive.

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