367 CE
Antipope Ursicinus is banished by the praefecti to Gaul. The first Listing of the New Testament (Bible) is made by St. Athanasius of Alexandria. Battle of Solicinium: Emperor Valentinian I launches a punitive expedition against the Alamanni, due to the crises in Britannia and Gaul. The Alamanni re-cross the Rhine and plunder Moguntiacum (modern Mainz).
Geopolitics & Diplomacy
Conflict & Security
- Winter – Valentinian I mobilises a massive army for his campaign against the Alamanni and the Franks. He summons the Italian and Illyrian legions for a spring offensive.source
- Great Conspiracy: The Roman garrison on Hadrian's Wall revolts and allows Picts from Caledonia to devastate Britain. Simultaneously Attacotti, the Scotti from Hibernia (Ireland), and the Saxons from Germania invade the island's mid-western and south-eastern borders. They sack the cities and murder, rape or enslave Romano-British civilians.source
- Battle of Solicinium: Emperor Valentinian I launches a punitive expedition against the Alamanni, due to the crises in Britannia and Gaul. The Alamanni re-cross the Rhine and plunder Moguntiacum (modern Mainz).source
Religion & Belief
- August 4 – Gratian receives the title of Augustus under his father, Valentinian I.source
- November 16 – Antipope Ursicinus is banished by the praefecti to Gaul.source
- Epiphanius of Salamis becomes bishop of Salamis, Cyprus.source
- The first Listing of the New Testament (Bible) is made by St. Athanasius of Alexandria.source
- Valentinian I declares that Christians will not be forced into gladiator training schools.source
- Emperor Valens is baptized by Eudoxius of Antioch.source
Science & Discovery
- In the region of the constellation Perseus, a star not visible to the naked eye, and 1,533 light years distant from Earth, explodes in a nova. The light from the star, now called GK Persei, was first detected on Earth on February 21, 1901.source