Neapolis, Naples, was situated on the W. slope of Mt. Vesuvius and on the banks of the small stream Sebethus. It was founded by the Greeks of Cumae, and was named Neapolis, "New City," in contradistinction to Palaepolis, "Old City," which had been previously established, probably on the hill of Pausilypus... Neapolis was conquered by the Samnites in b.c. 327, and passed into the hands of the Romans in 290; it retained its Greek character under them, and hence became a favourite resort of the Romans before the end of the Republic.
Source: wiktionary
At Neapolis there was chaos as those who could flee Roma came to this port seeking escape.
Source: wiktionary
Although we have no written evidence to confirm that Neapolis was a Thrasian colony, there can be no doubt that it was. It was so named by the colonists in order, probably, to denote that it was for them a 'new city', as opposed to their 'old' one on Thrasos... Neapolis seems to have severed all dependence on Thrasos very quickly.
Source: wiktionary
... the Scythians came and on the site of present-day Simferopol stood their capital, Neapolis, repeatedly mentioned by ancient writers. Neapolis reached its apogee in the 2nd century BC during the reign of King Skilur.
Source: wiktionary