books.google.co.uk - This book explores the relationship between the city of Rome and the Aurelian Wall during the six centuries following its construction in the 270s AD, a period when the city changed and contracted almost beyond recognition, as it evolved from imperial capital into the spiritual center of Western Christendom....http://books.google.co.uk/books/about/The_Aurelian_Wall_and_the_Refashioning_o.html?id=DZ5t-865v6cC&utm_source=gb-gplus-shareThe Aurelian Wall and the Refashioning of Imperial Rome, AD 271-855
