Patricia Southern · 2015 · historical monograph / narrative synthesis · n=?

The Roman Empire from Severus to Constantine

Cited 15 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Level 5 by design analogy; historical monograph and narrative synthesis without experimental or quantitative empirical data.

OpenAlex W4302570812 · doi:10.4324/9781315713083 · record verified 2026-08-31

What was done

The author conducted a revised and expanded historical reassessment of the Roman Empire from the reign of Septimius Severus through Constantine. The work synthesizes modern scholarship and primary historical accounts to examine the era of soldier-emperors, the crisis and near-collapse around AD 260, the subsequent territorial reunification, and the administrative and religious shift toward a Christian imperial state.

What was found

The abstract provides a narrative historical account without quantitative metrics. It reports that after imperial instability and near-collapse in AD 260, rulers including Gallienus, Probus, and Aurelian re-established imperial boundaries, laying the administrative and military groundwork for Diocletian's centralized rule and Constantine's Christianization of the empire, allowing imperial structures to survive for centuries.

Why it matters

This synthesis contextualizes the institutional resilience of the third-century Roman Empire, re-evaluating undervalued emperors and explaining the political and military adaptations that preceded the emergence of the Byzantine Empire.

Limits

The work is a narrative historical text rather than a structured or systematic empirical investigation. Analysis is constrained by the sparse, fragmented, and often biased nature of surviving third-century documentary and literary sources.

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