Ancient Hebrew writings the Tannaim (rabbis cited in the Mishnah), the spoken vernacular of Jews in Judaea was a late form of Hebrew known as Rabbinic or Mishnaic Hebrew, whereas during the period of the Amoraim (rabbis cited in the Gemara), which began around 200 CE, the spoken vernacular was Aramaic. Hebrew continued to be used for the writing of religious texts, poetry, and so forth. There are significant differences between the two Talmud compilations. The language of the Jerusalem Talmud is a Western Aramaic dialect, which differs from the form of Aramaic in the Babylonian Talmud. The Jerusalem Talmud is often fragmentary
Revival of the Hebrew language many difficulties: parents were opposed to their children learning in an impractical language, useless in higher education; the four-year schools for farmers' children were not of a high caliber; and a great lack of linguistic means for teaching Hebrew plus the lack of words to describe day-to-day activities, not to mention the absence of Hebrew schoolbooks. Added to these, there was no agreement on which accent to use, as some teachers taught Ashkenazi Hebrew while others taught Sephardi Hebrew. In 1889, Ben-Yehuda, together with rabbis Yaakov Meir and Chaim Hirschensohn and educator Chaim Kalmi, founded the Clear Language Society, with