260s BC establishments

Rimini ( , ; or ; ) is a city in the Emilia-Romagna region of Northern Italy.

thumb|350px|Part of the Zliten mosaic from [[Libya (Leptis Magna), about 2nd century AD. It shows (left to right) a thraex fighting a murmillo, a hoplomachus standing with another murmillo (who is signaling his defeat to the referee), and one of a matched pair.]]

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).