| Years |
|---|
| Millennium |
| 1st millennium |
| Centuries |
| Decades |
| Years |
| 266 by topic |
|---|
| Arts, history, and science |
| Countries |
|
|
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
Year 266 (CCLXVI) was a common year starting on Monday of the Julian calendar.
Events
By place
Roman Empire
- King Odaenathus of Palmyra invades Persia. He takes the capital Ctesiphon. He gives himself with the title "king of kings".
Ireland
- The rule of High King Cormac mac Airt ends (approximate date).
Births
- Wang Dun, general of the Jin Dynasty (d. 324)