Walking Hadrian's Wall
September 26th 2017 Built on the orders of Hadrian after he became Roman emperor and visited by him in AD122, the Wall defined the north-west frontier of the Roman Empire, covering 73 miles from east to west. It boasted 80 milecastles with two turrets between each, 17 larger forts and a defensive earthwork, the Vallum, to the south. Abandoned briefly shortly after it was built, it was in active use for some 300 years
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