Region: West Asia · Coordinates: 40.765, 29.920 · 11 events
| Year | Source | Account |
|---|---|---|
| 81 BC | Suetonius, Lives of the Caesars | His first campaign was in Asia; he went to Bithynia to fetch a fleet and stayed long at King Nicomedes' court, which left a scandal. |
| AD 214 | Cassius Dio, Roman History | Wintering at Nicomedia, Antoninus trained a Macedonian phalanx and built two dismountable siege engines for an Armenian and Parthian campaign |
| AD 218 | Historia Augusta | While he winters at Nicomedia, the soldiers regret their choice and begin to turn toward his cousin Alexander |
| AD 219 | Cassius Dio, Roman History | Elagabalus stayed several months in Antioch, then went to Bithynia (Nicomedia) for the winter, where he personally stabbed Gannys to death |
| AD 258 | Zosimus, New History | The Scythians enter wealthy Nicomedia, whose citizens fled with their goods, and gain enormous wealth; they then sweep through Nicaea, Cius, Apamea and Prusa. |
| AD 305 | Eutropius, Breviarium | On the same day Diocletian at Nicomedia and Herculius at Milan lay aside the imperial insignia and become private citizens. |
| AD 324 | Zosimus, New History | Besieged in Nicomedia, Licinius surrenders, offering up his purple; Constantine kills Martinianus and sends Licinius to Thessalonica, then breaks his oath and has him executed. |
| AD 337 | Aurelius Victor, De Caesaribus | Constantine dies at age 62 in a country place near Nicomedia (Achyrona) while on his way to Persia. A comet was seen. |
| AD 729 | Theophanes, Chronographia | A great earthquake: on 20 October the quake brings down churches and monasteries, and cities such as Nicomedia and Nicaea in Bithynia collapse (only one church remains in Nicaea). |
| AD 1207 | Villehardouin, The Conquest of Constantinople | At the Battle of Nicomedia, Henry's seneschal Thierry de Loos is captured and most of the garrison taken prisoner |
| AD 1207 | Villehardouin, The Conquest of Constantinople | Two-year truce with Laskaris — the castle of Schiza and the church fortress at Nicomedia are demolished and prisoners exchanged |