Augustus standardizes imperial coinage and mint controlJan 1, 23 BCELabels: Augustus, Imperial mintAugustus ReformBritannica Augustus
Rome’s grain-supply system becomes a monetary pressure pointJan 1, 50Labels: Cura annonae, RomeCura AnnonaeBritannica Annona
Tax payments documented through official receipts on ostracaJan 1, 100Labels: Ostraca, Roman EgyptBerkeley APISFitzwilliam
Caracalla introduces the antoninianus “double denarius”Jan 1, 215Labels: Caracalla, AntoninianusCaracallaANS Coin
Third-century crisis drives widespread debasement and instabilityJan 1, 235Labels: Third-century Crisis, DebasementJEEH ArticleAureus
Aurelian reforms coinage and marks new issuesJan 1, 274Labels: Aurelian, XXI markJEEH ArticleAurelian Reform
Diocletian launches a major coinage reformJan 1, 294Labels: Diocletian, ArgenteusJRS SutherlandArgenteus
Price ceilings issued in Diocletian’s Edict on Maximum PricesJan 1, 301Labels: Edict on, DiocletianBritannica EdictEdict Article
Tax assessment cycles (indiction) shape late Roman fiscal administrationJan 1, 312Labels: Indiction, Fiscal administrationIndictionBritannica Annona
Constantine issues gold solidi as a new standard coinJan 1, 312Labels: Constantine, SolidusANS SolidusAureus
Late Roman monetary policy shifts toward stable gold and complex small changeJan 1, 364Labels: Late Roman, Gold standardFollisAureus