Antiquities of the Jews is a 20-volume historiographical work composed by the Jewish historian Flavius Josephus,a first-century Romano-Jewish scholar, historian and hagiographer, who was born in Jerusalem—then part of Roman Judea—to a father of priestly descent and a mother who claimed royal ancestry.This work, along with Josephus's other major work, The Jewish War, provides valuable background material to historians wishing to understand 1st-century AD Judaism and the early Christian period.