Decades: 320s 330s 340s 350s 360s - 370s - 380s 390s 400s 410s 420s

Years: 374 375 376 377 378 - 379 - 380 381 382 383 384

• January 19 - Theodosius I is elevated as Roman Emperor at Sirmium.
• September 13 - Nun Yax Ayin becomes king of Tikal.
• Ardeshir II becomes King of Persia.
• Gratianus refuses title of eastern Roman Emperor.
• War of Feishui in China.
• Theodosius I makes peace with king Fritigern of the Visigoths.
• Celtic village of Cularo renamed Gratianopolis, later becomes Grenoble.
• Settlement of Jew Town in India by Jews.
• Niall becomes King of Ireland.
• Gregory Nazianzus becomes Patriarch of Constantinople, and is wounded when he is attacked by a mob of heretics.

• Gunderic, king of the Vandals

• Basil of Caesarea, bishop
• Wang XiZhi (Wang Hsi-chih) famous Chinese calligrapher.
• Shapur II, Persian King.
• Saint Macrina the Younger