Although it was completed almost 1900 years ago, the Roman ruin known today as Hadrian 's wall remains remarkably intact, and retains much of its former glory and mystique. Located in northern England, and stretching across nearly 80 miles of the hilly countryside of Northumbria, the ruin marks the northernmost expansion of one of the greatest civilizations in human history. It is architecturally significant as an astounding achievement of ancient engineering and design, and historically significant as a reminder of the military and political struggles of ancient Rome and Britannia. It is one of the most famed of all Roman ruins, and is unquestionably the most famous such edifice constructed so far from the capital city of Rome itself. On a grander scale, it is considered by many to be one of the greatest man-made structures of ancient times, and is often compared with the pyramids of Egypt, the Great Wall of China, and the ancient temples of the South American Aztecs. In the centuries before the birth of Christ, the city-state evolved as the central form of governmental power in the Ancient world. Sovereignty was centralized in the great cities of Rome, Vienna, Carthage, Alexandria, Cologne, and Damascus. Unlike the nation states of modern times, there were no clear boundaries delineating spheres of influence. Instead, each city-state governed local territories, and exerted its political influence as far outward as was pragmatically possible, with the only constraints being the technological, military and logistical limitations of the era. The city-states routinely went to war with each other over disputed territories and political conflicts. There was little peace in the outlying regions, and the only stability was found near the great cities themselves. Over the course of time, the city of Rome began to develop more influence and power, effectively gaining control of vast sections of modern day Italy
Bibliography: Birley, Anthony R., Hadrian: The Restless Emperor (London: Routledge Books, 1997). Perowne, Stewart, Hadrian (New York: W.W. Norton & Co., 1960). Romans in Cumbria: The History of England (London: Edge Books, 1997). Winpenny, David, Northumbria (London: Passport Books, 1998) p. 69.