I am fascinated by the constant evolution of nation states. Many of the countries we take for granted are recent creations. Germany, Italy, Belgium, most of South America - These are nineteenth (and later nineteenth) century creations. Norway is a twentieth century creation. The Balkans are a constant supernova of nation state creation. Africa has been evolving into its current form from the time of the first encounters with European explorers until the present day.
For many of us, there was the Roman empire. When the Western Roman empire was sacked, there was a period of intense darkness from which fully formed nation states emerged in the high middle ages. Mr. Geary looks at that intense period of darkness and asks how did those sovereign or quasi-sovereign institutions emerge after the decline of the Western Roman empire. He draws the conclusion that there was no cataclysmic event, followed by chaos until new political entities evolved. Rather he looks at the history of how barbarians were incorporated into the Roman empire, how these groups merged and blended and increasing reliance on barbarian military might lead to barbarian political power, but political power grafted onto the existing Roman institutions.
Particularly interesting, Mr. Geary discusses the role of Christianity of organizing and exercising political power. However, Christianity was rapidly evolving in this period. From the early Orthodox Christianity of the Roman aristocracy, new political centers of power developed around bishoprics. However, these were largely autonomous and local institutions, not subject to a hierarchy headed by the Pope and the Church of Rome. Local Roman aristocrats came to dominate these local institutions and with the help of Frankish military power, maintained control over local areas. As military power and political power merged, the distinction between Roman and Frankish, particularly at the highest levels of society, began to merge.
The Merovingian Frankish dynasty established a large empire on this model extending from Spain through present day France, Switzerland and Germany all the way to the Danube river. However, succession crises, the tensions between local and central control and the rudimentary technology available to cement central control, lead to decentralizing forces. Since heredity as a principle of succession does not always lead to competent rulers, new power centers were able to develop in the bureaucracy. Eventually, as these new power centers became more powerful under the Carolinians, they simply pushed aside the old Merovingian dynasty. To assert more central control, the Carolinians and the Pope in Rome worked hand-in-hand to end the old Orthodoxy and its local control. Thus the Carolinians and the Papacy needed each other to achieve their mutual aims of central control. Of course, soon after the rise of the Carolinians, the Pope and the civil rulers would start to vie with one another for dominant political control and thus Western history started its path towards today.
Mr. Geary combines review of the historical record with archaeological evidence to tell this story. In general this is a very readable book. For the non-academic, I wish Mr. Geary had given a little more background on the difference between the Orthodox Christianity of the late Roman period and the Catholic church we know today. Also, the old Frankish and Roman names are bewildering to the modern reader. Unfortunately and worse, the ancient names are bewilderingly similar to each other making it hard for the modern reader to keep them straight. A list of the personnae dramatis would have been really helpful.
All too often we view the facts of today as somehow immutable. However, our politics, our culture, our religion our arts evolved and continue to evolve. For me, that is why we study history. Mr. Geary's book is an excellent example of evolution and how that early evolution affects us today. He looked at a period when the ancient slowly merged into the medieval, a period that is poorly understood today, and shows us its continuing relevance.