378

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cp=3rd century
c=4th century
cf=5th century

yp1=375
yp2=376
yp3=377
year=378
ya1=379
ya2=380
ya3=381
dp3=340s
dp2=350s
dp1=360s
d=370s
dn1=380s
dn2=390s
dn3=400s__NOTOC__

Events

By Place

Roman Empire

* Mid-February - The Lentienses cross the frozen Rhine, invading the Roman Empire.
* May - The Lentienses are defeated by Gratianus in the Battle of Argentovaria.
* August 9 - Battle of Adrianople: A large Roman army led by Emperor Valens is defeated by the Visigoths in present-day Turkey. Valens is killed along with two-thirds of his army.
* Theodosius I becomes eastern Roman emperor after the death of Valens.
* Valens completes the aqueduct of Constantinople begun by Constantine I.

The Americas

* Siyah K'ak' begins to replace Mayan kings with relatives of Spearthrower Owl, emperor of Teotihuacan.

By Topic

Religion

* Gregory Nazianzus is ordained bishop of Constantinople.
* Pope Damasus I is accused of adultery but is exonerated by emperor Gratian.

Births

* Germanus of Auxerre, bishop of Auxerre

Deaths

* Roman Emperor Valens (at the Battle of Adrianople)
* Khui Ningomba, Meitei King of Manipur