Hebrew thus started in the 1920s ideologically supported within the Jewish community and officially recognized by the Mandatory government in Eretz Yisrael, as the language for that community and its schools.
The riots (pogrom - farhud) against the Jews of Babylon that broke out in Baghdad in 1942, left a profound impression on the heart of every Jew, and especially the yong ones, who began to find solotions in the form of illegal immigration, mainly to the Land of Israel. The first cell of the underground Zionist movement in Baghdad was established during the second half of 1942. The purpose was to act within the framework of the youth, to learn the reviving Hebrew language, to educate for pioneering Zionism, and for emigration to the Land of Israel (1).
The waves of new immigration who come to the State during the years 1950 - 1952, learned Hebrew informally or in Ulpanim (intensive programs).Younger immigrations (children going to school, or young addults serving in the army), rapidly became Hebrew speakers, but many immigrants maintained the use of their languages. In many cases, the children became the teachers of their parents in their first attempts to speak Hebrew (2).
Since then. the Hebrew that became the official language of the State of Israel, replaced and eradicated the Arabic Baghdadi language spoken by the Jews of Babylon, who arrived in Israel within the framework of the mass emigration to Israel.
(1) Bibi, M. (1998)
(2) Yaron. J. (2007)