+Offa's Dyke is a monumental early medieval linear earthwork, tracing a long line between what is now England and [Wales](/wiki/wales). Attributed to [King Offa](/wiki/king_offa) of Mercia in the 8th century, it stands as a testament to ancient power and a lasting boundary across the landscape.
+## See also
+- [King Offa](/wiki/king_offa)
+- [Mercia](/wiki/mercia)
+- [Earthwork](/wiki/earthwork)
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