Offa's Dyke

The massive ancient earthwork that provides the sole commemoration of an extraordinary Anglo-Saxon king and that gives its name to one of our most popular contemporary national walking trails remains an enigma. Despite over a century of study, we still do not fully understand how or why Britain's largest linear monument was built, and in recent years, the views of those who have studied the Dyke have diverged even as to such basic questions as its physical extent and date of construction. This b