Philistia was a confederation of five main cities or pentapolis in the Southwest Levant, made up of principally Gaza, Ashkelon, Ashdod, Ekron, Gath, and for a time, Jaffa (part of present-day Tel Aviv-Yafo).
Scholars believe the Philistines were made up of people of an Aegean background that from roughly 1200 BC onwards settled in the area and mixed with the local Canaanite population, and came to be known as Peleset, or Philistines. At its maximum territorial expansion, its territory may have stretched along the Canaanite coast from Arish in the Sinai (today's Egypt) to the Yarkon River (today's Tel Aviv), and as far inland as Ekron and Gath. Nebuchadnezzar II invaded Philistia in 604 BC, burned Ashkelon, and incorporated the territory into the Neo-Babylonian Empire; Philistia and its native population – the Philistines – disappear from the historic record after that year, until the second century BC, when both Philistea and its cities (Joppa, Jamina, and Azotus) reappear in biblical and Greek texts, in the context of the Maccabean Revolt and the Hellenistic period.