Scottish hillfort speaks of post-Roman unrest

A team of archaeologists from Rampart Scotland has discovered evidence of a post-Roman hillfort at Sheriffside, 20 miles to the east of Edinburgh, Scotland. Experts believe that the fort, and its 2.80m deep ditch, were constructed to defend against frequent raids by Scots and Picts against local tribes.

Historical evidence for tribal conflicts is scarce, but the archaeologists on the project used Roman reports to date the construction of the ditch to 211-384 CE, a time when the Roman had withdrawn south behind Hadrian's Wall. 

A feature articfle by Murray Cook and David Connolly, on the Past Horizons website, investigates the hillfort and its place in history.