Kingdom of Bithynia

State · 333–67 BCE · at its largest around 77 BCE

Hellenistic kingdom in northwestern Anatolia ruled by a Thracian dynasty, whose last king Nicomedes IV bequeathed it to Rome.

On its lands while it lasted

• Byzantium (c. 667 BCE – c. 329 CE): Greek colony founded by settlers from Megara on the Bosporus; it was refounded by Constantine as Constantinople in 330 CE.

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