Following the mutinous killing of Emperor Severus Alexander (208–235 CE) in 235 CE, the Roman Empire sank into a period of civil war now generally known as the Crisis of the Third Century [1, 2]. During this period, the Empire saw the combined pressures of barbarian invasions and migrations into Roman territory, civil wars, peasant rebellions, and significant political instability [1–3]. This all then led to the debasement of currency [4], as well as a breakdown in both trade networks and economic productivity. Thus, by the time that Diocletian (ca. 242–311/312) became emperor in 284 CE, much had changed within the Roman Empire. The emperor now spent little time in Rome, with the bulk of their reigns spent either fighting on the frontiers or in civil wars [5, 6].