Permanent historical records · Updated 2026-11-03

378 in Roman Empire

Explore 5 historical events and records for Roman Empire in 378.

Historical records for Roman Empire in 378

Sorted by month and day. Records with no month are shown last. Showing 5 of 5 unique records.

5Unique records
1 of 1Page
4Named events on this page
3Named people on this page
2Places on this page

August

Battle of Adrianople

Valens · Adrianople · Warfare / Roman Empire-Gothic War

Victory of the Goths leads to a settlement of frontiers with Rome & fall of the Empire. The Visigoths defeat the Roman Army & kill the Emperor. The power of cavalry is demonstrated for the 1st time

Death of Valens

Valens · Adrianople · House / House of Valentinian

Death of Valens, in battle against the Visigoths

Death of Valens

Valens · Adrianople · Warfare / Roman Empire-Gothic War

Death of Valens, the Visigoths defeat the Roman Army & kill the Emperor

Other events (month unknown)

Gratian Defeats Alamanni at Argentovaria

Gratian · Argentovaria · Warfare / Military

Gratians Roman troops defeated an Alamannic force near Argentovaria, delaying his army march to assist Valens in the east.

Succession

Valentinian II · House / House of Valentinian

Gratian nominates Theodosius as Emperor in the east rather than Valentian

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.