264 BC

year

First War between Rome and Carthage

Nicomedia (; , Nikomedeia; modern İzmit) was an ancient Greek city located in what is now Turkey. In 286 AD, Nicomedia became the eastern and most senior capital city of the Roman Empire (chosen by the emperor Diocletian who ruled in the east), a status which the city maintained during the Tetrarchy system (293–324 AD).

first military conflict between the Roman Republic and Carthage, marking the start of the First Punic War