Leucarum

Early construction, from around AD73, was mostly in timber with earth banks, but successive rebuilds of both defenses and internal buildings in stone defences indicate some 50 years of intermittent use perhaps due to unrest or uneasy occupation until around AD120. It was subsequently abandoned for a time and by the early 3rd century the ditch had naturally silted up. It appears to have been more actively renovated (with a reduction in size at the western end) and put back into use by the later 3rd century, including the period when Carausius declared himself emperor in Britain and northern Gaul (Imperium Britanniarum). It was abandoned again by the Romans by the 330s, this time for good. A…