Gibbon's second volume opens at the smoldering ruins of Rome after the Great Fire of 64 AD, where Emperor Nero scapegoated the fledgling Christian sect for his own arson. From this infamous persecution, Gibbon traces an extraordinary transformation: the slow percolation of an obscure Jewish sect into the official religion of the empire. We witness the philosophical paganism of Marcus Aurelius, the military anarchy of the third century, Diocletian's desperate reforms, and finally Constantine's conversion, which Gibbon analyses with devastating precision, asking not just what happened but why Christianity succeeded where other cults failed. The founding of Constantinople anchors the narrative, the new Christian Rome that would outlast the old. This is history as literature: Gibbon's prose possesses a rhetorical elegance that makes the fall of empires read like tragedy. His ironic detachment, his careful weighing of evidence, his willingness to question both pagan virtue and Christian triumph, these made him modern when modern history did not exist. Readers who finish this volume understand why empires die not in a single battle but through gradual rot, institutional sclerosis, the slow replacement of old loyalties with new faiths.
