The history of the Jews in France deals with Jews and Jewish communities in France since at least the Early Middle Ages. France was a centre of Jewish learning in the Middle Ages, but persecution increased over time, including multiple expulsions and returns. During the French Revolution in the late 18th century, on the other hand, France was the first European country to emancipate its Jewish population. Antisemitism still occurred in cycles and reached a high in the 1890s, as shown during the Dreyfus affair, and in the 1940s, under Nazi occupation and the Vichy regime.
Before 1919, most French Jews lived in Paris, with many being very proud to be fully assimilated into French culture, and they comprised an upscale subgroup. A more traditional Judaism was based in Alsace-Lorraine, which was recovered by The German Empire in 1871 and taken by France in 1918 following World War I. In addition, numerous Jewish refugees and immigrants came from Russia and eastern and central Europe in the early 20th century, changing the character of French Judaism in the 1920s and 1930s. These new arrivals were much less interested in assimilation into French culture. Some supported such new causes as Zionism, the Popular Front and communism, the latter two being popular among the French political left.
