Siege of Jerusalem (63 BC) in the context of "Hasmonean Kingdom"

The history of the Jews in the Roman Empire traces the interaction of Jews and Romans during the period of the Roman Empire (27 BC – 476 AD). A Jewish diaspora had migrated to Rome and to the territories of Roman Europe from the land of Israel, Anatolia, Babylon and Alexandria in response to economic hardship and incessant warfare over the land of Israel between the Ptolemaic and Seleucid empires from the 4th to the 1st centuries BC. In Rome, Jewish communities thrived economically. Jews likely became a significant part of the Roman Empire's population in the first century AD, though there is no agreement in academia about the exact numbers and most numbers are speculative at best.

Roman general Pompey conquered Jerusalem and its surroundings by 63 BC. The Romans deposed the ruling Hasmonean dynasty of Judaea (in power from c. 140 BC) and the Roman Senate declared Herod the Great "King of the Jews" in c. 40 BC. Judea proper, Samaria and Idumea became the Roman province of Judaea in 6 AD. Jewish–Roman tensions resulted in several Jewish–Roman wars between the years 66 and 135 AD, which resulted in the destruction of Jerusalem and the Second Temple and the institution of the Jewish Tax in 70 (those who paid the tax were exempt from the obligation of making sacrifices to the Roman imperial cult).

The history of the Jews in Europe spans a period of over two thousand years. Jews, a Semitic people descending from the Judeans of Judea in the Southern Levant, began migrating to Europe just before the rise of the Roman Empire (27 BCE), although Alexandrian Jews had already migrated to Rome, and some Gentiles had undergone Judaization on a few occasions. A notable early event in the history of the Jews in the Roman Empire was the 63 BCE siege of Jerusalem, where Pompey had interfered in the Hasmonean civil war.

Jews have had a significant presence in European cities and countries since the fall of the Roman Empire, including Italy, Spain, Portugal, France, the Netherlands, Germany, Poland, and Russia. In Spain and Portugal in the late fifteenth century, the monarchies forced Jews to either convert to Christianity or leave and they established offices of the Inquisition to enforce Catholic orthodoxy of converted Jews. These actions shattered Jewish life in Iberia and saw mass migration of Sephardic Jews to escape religious persecution. Many resettled in the Netherlands and re-judaized, starting in the late sixteenth and early seventeenth centuries. In the religiously tolerant, Protestant Dutch Republic Amsterdam prospered economically and as a center of Jewish cultural life, the "Dutch Jerusalem". Ashkenazi Jews lived in communities under continuous rabbinic authority. In Europe Jewish communities were largely self-governing autonomous under Christian rulers, usually with restrictions on residence and economic activities. In Poland, from 1264 (from 1569 also in Lithuania as part of the Polish–Lithuanian Commonwealth), under the Statute of Kalisz until the partitions of the Polish–Lithuanian Commonwealth in 1795, Jews were guaranteed legal rights and privileges. The law in Poland after 1264 (in the Polish–Lithuanian Commonwealth in consequence) toward Jews was one of the most inclusive in Europe. The French Revolution removed legal restrictions on Jews, making them full citizens. Napoleon implemented Jewish emancipation as his armies conquered much of Europe. Emancipation often brought more opportunities for Jews and many integrated into larger European society and became more secular rather than remaining in cohesive Jewish communities.

Most scholars who study the historical Jesus and early Christianity believe that the canonical gospels and the life of Jesus must be viewed within their historical and cultural context, rather than purely in terms of Christian orthodoxy. They look at Second Temple Judaism, the tensions, trends, and changes in the region under the influence of Hellenism and the Roman occupation, and the Jewish factions of the time, seeing Jesus as a Jew in this environment; and the written New Testament as arising from a period of oral gospel traditions after his death.

In 64 BCE, the already partially Hellenized Hasmonean Kingdom of Judea was incorporated into the Roman Republic as a client kingdom when Pompey the Great conquered Jerusalem. The Romans treated Judea as a valued crossroads to trading territories, and as a buffer state against the Parthian Empire. Direct rule was imposed in 6 CE, with the formation of the province of Judea. Roman prefects were appointed to maintain order through a political appointee, the High Priest. After the uprising by Judas the Galilean and before Pontius Pilate (26 CE), in general, Roman Judea was troubled but self-managed. Occasional riots, sporadic rebellions, and violent resistance were an ongoing risk.