Years: 374 375 376 377 - 378 - 379 380 381 382

Decades: 340s 350s 360s - 370s - 380s 390s 400s

Centuries: 3rd century - 4th century - 5th century

Events

• Mid-February: Lentienses cross frozen Rhine, invading Roman Empire. Later that year they are defeated by Gratianus.
• 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 2/3 of his army.
• Gregory Nazianzus ordained bishop of Constantinople.
• Theodosius I becomes eastern Roman emperor after the death of Valens.
• Pope Damasus I is accused of adultery but is exonerated by emperor Gratian.
• Siyah K'ak' begins to replace Mayan kings with relatives of Spearthrower Owl, emperor of Teotihuacan.

Births

• Germanus of Auxerre, bishop of Auxerre

Deaths

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

af:378 bg:378 bs:378 ca:378 de:378 es:378 eo:378 eu:378 fr:378 ko:378년 hr:378 it:378 lb:378 nl:378 no:378 pl:378 pt:378 ro:378 ru:378 sl:378 sr:378 sv:378 uk:378 zh:378年