It is 1,900 years since the Roman emperor Hadrian (r. 117-138) made landfall in Britain. His presence marks a departure from business as usual, as the island was not a standard destination for imperial inspections. Instead, Hadrian was only the second reigning emperor to make the trip, following Claudius (r. 41-54), who came to claim the glory for his invasion in AD 43. The sparse surviving Roman accounts tell us little about Hadrian’s activities in Britain, and nothing at all about his motive for visiting in 122. It is certain, though, that the island was convulsed by unrest during his tenure.
One ancient document known as the Historia Augusta bluntly declares that ‘the Britons could not be kept under Roman sway’ following Hadrian’s accession. Sadly, the nature of these disturbances passes without comment, but we do know that decades later the events in Britain were remembered as an example of severe Roman troop losses. These cannot be explained by a misfiring imperial campaign, as Britain was not a target for expansion under Hadrian. Instead, the emperor was something of a maverick for fixating on securing the edges of Roman territory rather than conquering new lands. So, what caused these casualties, and can they help shed light on the greatest legacy of the emperor’s entanglement with Britain: Hadrian’s Wall?
Today, we are so familiar with the existence of the Wall that its construction can appear inevitable. It would not have seemed that way when work on the monument began. In its finished form, the Wall ran for 80 Roman miles (117km) from Wallsend near Newcastle to Bowness-on-Solway beyond Carlisle. For most of its course, there were three linear barriers: a wide ditch to the north, the curtain wall itself, and a huge earthwork called the Vallum to the south. The curtain bristled with more than 160 towers known as turrets and 81 small posts called milecastles. A series of Wall forts placed either on or directly behind the curtain held thousands of soldiers. Nothing even remotely comparable had been seen in Britain before. The result is surely still the greatest military fortification ever fashioned within its shores.
Excavating the CA archive