[edit] Events

[edit] By place

[edit] Roman Empire

• November 20—Diocletian becomes Emperor.
• The Bagaudae in Gaul revolt against the Romans.
• The Dardani became a province of Rome

[edit] By topic

[edit] Religion

• Patriarch Rufinus I succeeds Patriarch Dometius as Patriarch of Constantinople.
• Year 1 of the Coptic calendar (or 285).

[edit] Births

• Ge Hong, Chinese Daoist philosopher, poet, alchemist, government official, and biographer (d. 364)
• Emperor Huai of Jin, emperor of the Jin Dynasty

[edit] Deaths

• November—Numerian, Roman emperor
• Diophantus, Greek mathematician (approximate date)
• Sun Hao, final emperor of the Chinese Kingdom of Wu
• Xin Xianying
• Zhang Jiao