In the 250 years between 250 and 500 C.E., Rome found itself transformed from a mighty global empire into a limited collection of Germanic kingdoms. The aspiration exhibited in these kingdoms (as well as in Constantinople and later in the person of Charlemagne) to recreate and reclaim the glory of the Roman Empire persists to this day, and an examination of this time is critical to anyone interested in politics or history. James Ermatinger's multifaceted...