User:Olaf Davis/Sandbox2

Oxford City Wall
The town of Oxford had defences before the Norman Conquest of 1066, and they were strengthened shortly thereafter. Since then parts of the wall have been rebuilt several times, although no changes to the line of the wall were made after 1100.

Potential sources

 * The Industrialization of Oxford, E. W. Gilbert, The Geographical Journal, Vol. 109, No. 1/3, 1947, pp. 1-22
 * Oxford, The medieval walled town, A guided walk, Jacqueline Tivers. (in Oxford library)
 * Library online reference desk
 * Oxfordshire studies library
 * 
 * Listed buildings - ask at library