Mizrahi Jews distinctive rites of the Mizrahi communities were influenced, superimposed upon or altogether replaced by the rite of the Sephardim, perceived as more prestigious. Even before this assimilation, the original rite of many Jewish Oriental communities was already closer to the Sephardi rite than to the Ashkenazi one. For this reason, "Sephardim" has come to mean not only "Spanish Jews" proper but "Jews of the Spanish rite", just as "Ashkenazim" is used for "Jews of the German rite", whether or not their families originate in Germany. Many of the Sephardi Jews exiled from Spain resettled in greater or lesser numbers in
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