The comparative study of empires has traditionally been addressed in the widest possible global historical perspective with comparison of New World empires such as the Aztecs and Incas side by side with the history of imperial Rome and the empires of China and Russia in the medieval and modern periods. Surprisingly little work has been carried out focusing on the evolution of state control and imperial administration in the same territory; approached in a rigorous and historically grounded fashion over a wide extent of historical time from late antiquity to the twentieth century. The empires...