Offa's Dyke

Offa's Dyke (Welsh: Clawdd Offa) is a massive linear earthwork, roughly followed by some of the current border between England and Wales. In places, it is up to 65 feet (19.8 m) wide (including its flanking ditch) and 8 feet (2.4 m) high. In the 8th century it formed some kind of delineation between the Anglian kingdom of Mercia and the Welsh kingdom of Powys. Research in recent decades has dispelled many of the earlier theories and ideas about the earthwork.

Read more about Offa's Dyke:  Overview, Historical Evidence, Modern Scholarship, Alternative Theories, The Offa's Dyke Centre, Offa's Dyke Path, Cultural References

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