Battle of Adrianople
Constantine defeats Licinius near Adrianople in the renewed civil war and forces him to withdraw toward Byzantium.
Permanent historical records · Updated 2026-11-03
324 in Roman Empire
Explore 10 historical events and records for Roman Empire in 324.
Historical records for Roman Empire in 324
Sorted by month and day. Records with no month are shown last. Showing 10 of 10 unique records.
10Unique records
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5Places on this page
July
Battle of Adrianople
Constantine defeats Licinius & unites the 2 halves of the Empire under his sole rule
Battle of Chrysopolis
Constantine defeats Licinius during a naval Battle after the Battle of Adrianople
September
Battle of Chrysopolis
Constantine defeats Licinius at Chrysopolis, ending the final major military challenge to his sole rule.
November
Foundation of Constantinople
Constantine formally refounds Byzantium as Constantinople, beginning the development of his new imperial residence.
Other events (month unknown)
Caesar
Appointed Caesar, junior Emperor
Hellespont Naval Victory
Constantine's son Crispus defeats Licinius's fleet in the Hellespont, helping Constantine secure the final victory in the civil war.
Siliqua Currency Reform
Under Constantine's monetary system, new silver denominations including the siliqua enter circulation after he becomes sole emperor.
Sole Emperor
After Licinius surrenders, Constantine becomes sole ruler of the Roman Empire.
Third Consulship
Constantine II serves a third consulship alongside Crispus during the final war between Constantine I and Licinius.
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.