Neapolis (Ancient Greek: Νεάπολις) was an ancient Greek[1] city located in Thrace , located in the region between the river Strymon and the river Nestos.It was founded by colonists from Thasos.Neapolis was a member of the Delian league and entered the Athenian tribute list at 454 BC first by toponym and by 443 BC by city-ethnic name.Recorded a total of fourteen times form 454 BC to 429 BC it paid the sum of 1,000 drachmas.It had independence from Thasos as dues of its customs were collected in its own harbour.At a point property of Neapolitans in Thasos was confiscated by the Oligarchs related to a situation from before 463 BC when the Thasian "peraia" was detached from Thasos. Despite Thasos defection from the Delian league in 411 BC Neapolis remained loyal causing Neapolitan Oligarchs to flee to Thasos and the confiscation of properties. Neapolis was besieged by the Thasians unsuccessfully causing the Athenians to praise them for their loyalty and for participating the siege of Thasos itself at 410 or 409 BC.