Israel Menachem Mendel Schneerson (1902–1994), seventh Rebbe of Chabad-Lubavitch Elazar Shach (1899-2001) (rav shach) Rosh Yeshiva Ponevezh and Posek Yaakov Chaim Sofer (1870–1939; Kaf Hachaim) Joseph B. Soloveitchik (1903 – 1993) (rav yoshe ber) 20th century Rosh Yeshiva, Talmudist, and religious philosopher. Joel Teitelbaum (Divrei Yoel; 1887-1979), the first Satmar rebbe Eliezer Waldenberg 1915-2006 the "Tzitz Eliezer" Major Modern Posek in Israel Shmuel Wosner (Shevet Halevi) (1913-2015), Posek, Yeshivat Chachmei Lublin Ovadia Yosef (1920–2013), Iraqi-born Halakhist, Posek and Sephardic Chief Rabbi of Israel (1973–1983) See also Rabbinic literature Eras of history important in Jewish law List of rabbis History of Responsa: Acharonim References External links The Rules of Halacha , Rabbi Aryeh Kaplan The different rabbinic eras, faqs.org Torah Personalities and the Times in Which They Lived (MP3s), Rabbi R Y Eisenman Early Achronim 5160–5410 (1400–1650) & Later Achronim 5410 (1650), chabad.org Mini-biographies from chaburas.org 16th Century 17th Century 18th Century 19th Century 20th Century Articles which contain graphical timelines 7