Events

By Place

Roman Empire

• January 19 — Theodosius I is elevated as Roman Emperor at Sirmium.
• Gratianus refuses the title of Eastern Emperor.
• The Celtic village of Cularo is renamed Gratianopolis (later Grenoble).
• Gratian renounces the title pontifex maximus.

Europe

• Niall becomes King of Ireland.

Asia

• Ardeshir II becomes King of Persia.
• The War of the Feishui is fought in China.

The Americas

• September 13 — Yax Nuun Ayiin (I) becomes ruler of Tikal.

By Topic

Religion

• Gregory Nazianzus becomes Patriarch of Constantinople, and is wounded when he is attacked by a mob of heretics.
• John Chrysostom writes a book on the Christian education of children.

Births

• Gunderic, king of the Vandals
• Wang Hong

Deaths

• January 1 — Basil of Caesarea, bishop
• Wang Xizhi (Wang Hsi-chih) famous Chinese calligrapher
• Shapur II, Persian King
• Saint Macrina the Younger