Further waves of Jewish immigrants settled in Egypt during the Ptolemaic era, especially around Alexandria. Thus, their history in this period centers almost completely on Alexandria, though daughter communities rose up in places like the present Kafr ed-Dawar, and Jews served in the administration as custodians of the river. As early as the 3rd century BCE, there was a widespread diaspora of Jews in many Egyptian towns and cities. In Josephus's history, it is claimed that, after the first Ptolemy took Judea, he led some 120,000 Jewish captives to Egypt from the areas of Judea, Jerusalem, Samaria, and Mount Gerizim. With them, many other Jews, attracted by the fertile soil and Ptolemy's liberality, emigrated there of their own accord. An inscription recording a Jewish dedication of a synagogue to Ptolemy and Berenice was discovered in the 19th century near Alexandria.