Hebraization of surnames to get rid of names with a diaspora sound. Hebraization of names became a typical part of the integration process for new immigrants among Ashkenazi Jews, but also among Sephardi and Mizrahi Jewish immigrants from Arab and Muslim lands; Sephardi and Mizrahi children were typically given new Hebrew names in school, often without permission from their parents. David Ben-Gurion, the first Prime Minister of Israel, was committed to the use of the Hebrew language (he changed his surname from Grün to Ben-Gurion). He tried to convince as many people to change their surnames into "real" Hebrew ones. Ben-Gurion got Herzl
Ashkenazi Hebrew from Spain in 1492 (or before) the Sephardic pronunciation of the vowels became standard in all these countries, ironing out any differences that previously existed. This makes it harder to adjudicate between the different theories on the relationship between today's pronunciation systems and those of ancient times. Leopold Zunz believed that the Ashkenazi pronunciation was derived from that of Palestine in Geonic times (7th–11th centuries CE), while the Sephardi pronunciation was derived from that of Babylonia. This theory was supported by the fact that, in some respects, Ashkenazi Hebrew resembles the western dialect of Syriac while Sephardi Hebrew resembles the