Moses Schreiber (1762–1839), known to his own community and Jewish posterity in the Hebrew translation as Moshe Sofer, also known by his main work Chatam Sofer, Chasam Sofer, or Hatam Sofer (trans. Seal of the Scribe, and acronym for Chiddushei Toiras Moishe Sofer), was one of the leading Orthodox rabbis of European Jewry in the first half of the nineteenth century. He was a teacher to thousands, and a powerful opponent of the Reform movement in Judaism, which was attracting many people from the Jewish communities in the Austrian Empire, and beyond. As Rav of the city of Pressburg, he maintained a strong Orthodox Jewish perspective through communal life, first-class education, and uncompromising opposition to Reform and radical change. Sofer established a yeshiva in Pozsony (Pressburg in German; today Bratislava, Slovakia), the Pressburg Yeshiva, which became the most influential yeshiva in Central Europe, producing hundreds of future leaders of Hungarian Jewry. This yeshiva continued to function until World War II; afterward, it was relocated to Jerusalem, under the leadership of the Chasam Sofer's great-grandson, Rabbi Akiva Sofer (the Daas Sofer). Sofer published very little during his lifetime; however, his post-humously published works include more than a thousand responsa, novellae on the Talmud, sermons, biblical and liturgical commentaries, and religious poetry. He is an authority who is quoted many times in Orthodox Jewish scholarship. Many of his responsa are required reading for semicha (rabbinic ordination) candidates. His Torah chiddushim (original Torah insights) sparked a new style in rabbinic commentary, and some editions of the Talmud contain his emendations and additions. Early years Sofer was born in Frankfurt am Main on September 24, 1762. His father's name was Shmuel and his mother's was Reizel, the daughter of Elchanan.<ref name="EleToldot"> This 32-volume collection of transcribed genealogical records of the Jewish community of Frankfurt am Main, covering the years 1241 to 1824 is available at the Leo Baeck Institute. Additional details about the work can be seen in the December 1996 issue (no. 11) of [http://www.lbi.org/publications/periodicals/stammbaum/ 'Stammbaum], the newsletter of German-Jewish Genealogical Research</ref> Shmuel's mother, Reizchen was a daughter of the Gaon of Frankfurt, Shmuel Schotten. Education At the age of nine, Sofer entered the yeshiva of Rabbi Nathan Adler at Frankfurt, a kabbalist known for his strict and unusual ritual practices. He was a pupil of Pinchas Horowitz of Frankfurt for one year, leaving in 1776 for the yeshiva of another rabbi, David