Permanent historical records ยท Updated 2026-11-03

305 in Roman Empire

Explore 17 historical events and records for Roman Empire in 305.

Historical records for Roman Empire in 305

Sorted by month and day. Records with no month are shown last. Showing 17 of 17 unique records.

17Unique records
1 of 1Page
14Named events on this page
6Named people on this page
10Places on this page

May

Appointed Caesar

Flavius Valerius Severus ยท House / House of Diocletian

Severus is appointed Caesar in the western tetrarchy when Diocletian and Maximian abdicate.

Other events (month unknown)

Aquileia Coinage

Flavius Valerius Severus ยท Aquileia ยท House / House of Diocletian

The mint at Aquileia issues coinage in the name and portrait of Severus during his period as Caesar.

Authority over Africa

Flavius Valerius Severus ยท Africa ยท House / House of Diocletian

Severus receives authority over Roman Africa as part of his western Caesarian assignment.

Authority over Italy

Flavius Valerius Severus ยท Italy ยท House / House of Diocletian

Severus receives administrative responsibility for Italy after his appointment as Caesar.

Authority over Pannonia

Flavius Valerius Severus ยท Pannonia ยท House / House of Diocletian

Severus also exercises authority in Pannonia within the territorial arrangements of the tetrarchy.

Carthage Mint Coinage

Flavius Valerius Severus ยท Carthage ยท House / House of Diocletian

The Carthage mint issues coinage for Severus while he administers western provinces under the tetrarchy.

Former Governor of Pannonia

Flavius Valerius Severus ยท Pannonia ยท House / House of Diocletian

Before entering the tetrarchy, Severus serves as governor of Pannonia according to later biographical summaries.

Joins Constantius in the West

Constantine I the Great ยท Gaul ยท House / House of Constantine

Constantine leaves the eastern court and joins his father Constantius in the western provinces.

Junior to Constantius I

Flavius Valerius Severus ยท House / House of Diocletian

As Caesar, Severus serves under the western Augustus Constantius I within the second tetrarchy.

Rome Mint Coinage

Flavius Valerius Severus ยท Rome ยท House / House of Diocletian

The mint of Rome produces imperial coinage for Severus during his Caesarian period.

Siscia Mint Coinage

Flavius Valerius Severus ยท Siscia ยท House / House of Diocletian

The mint at Siscia strikes coins naming Severus as a member of the tetrarchic college.

Succession

Constantius I ยท House / House of Constantine

Succeeds as co-Emperor of the Western Roman Empire, includes Spain, Gaul & Britain

Succession

Galerius Valerius ยท House / House of Diocletian

Succeeds as Emperor of the Eastern Empire of Rome

Succession

Maximin ยท House / House of Diocletian

Succeeds as Emperor of the Eastern Roman Empire

Succession

Severus ยท House / House of Constantine

Succeeds as co-Emperor of the Western Roman Empire

Tarragona Mint Coinage

Flavius Valerius Severus ยท Tarragona ยท House / House of Diocletian

Coinage attributed to the Tarragona mint is issued in Severus's name during his place in the tetrarchic system.

Trier Gold Coinage

Flavius Valerius Severus ยท Trier ยท House / House of Diocletian

Gold coinage from Trier bears Severus's name and portrait while he holds the rank of Caesar.

How these records were prepared

Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.