|289 by topic|
|Ab urbe condita||1042|
|Balinese saka calendar||210–211|
|Chinese calendar||戊申年 (Earth Monkey)
2985 or 2925
— to —
己酉年 (Earth Rooster)
2986 or 2926
|- Vikram Samvat||345–346|
|- Shaka Samvat||210–211|
|- Kali Yuga||3389–3390|
|Iranian calendar||333 BP – 332 BP|
|Islamic calendar||343 BH – 342 BH|
|Minguo calendar||1623 before ROC
|Seleucid era||600/601 AG|
|Thai solar calendar||831–832|
415 or 34 or −738
— to —
416 or 35 or −737
|Wikimedia Commons has media related to 289.|
Year 289 (CCLXXXIX) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Bassus and Quintianus (or, less frequently, year 1042 Ab urbe condita). The denomination 289 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
- Emperor Diocletian gains several victories along the Danube against the Sarmatians. He is given the honorable title of Sarmaticus Maximus.
- Maximian attempts to reconquer Britain from the usurper Carausius, but fails due to bad weather. He loses his fleet and accepts a peace treaty.
- Constantius Chlorus divorces his wife (or concubine) Helena, mother of Constantine I, and marries emperor Maximian's stepdaughter, Theodora.
- Fausta, second wife of Constantine I (d. 326)
- Yu Liang, general of the Jin Dynasty (d. 340)
- Margaret the Virgin, also known as Margaret of Antioch, a Catholic saint (d. 304)