The discovery of a few muddy coins in a Devon paddock by a pair of amateur metal detector enthusiasts has led to the redrawing of the boundary of the Roman empire in south-west Britain. Previously it had been thought that Ancient Rome’s influence did not stretch beyond Exeter but the find has resulted in a major archaeological dig that has unearthed more coins, a stretch of Roman road and the remnants of vessels from France and the Mediterranean once full of wine, olive oil and garum -- fish sauce. The far south-west of Britain has long been seen as an...