Alongside Michael Steinhardt and JJ Greenberg, Rabbi Irving Greenberg played a founding role in the establishment of Jewish Life Network/Steinhardt Foundation. From 2000-2002, Greenberg served as Chairman of the United States Holocaust Memorial Council. An ordained Orthodox rabbi and a Harvard Ph.D. and scholar, Greenberg has been a seminal thinker in confronting the Holocaust as an historical transforming event and Israel as the Jewish assumption of power and the beginning of a third era in Jewish history. Rabbi Greenberg has published numerous articles and monographs on Jewish thought and religion, including The Jewish Way: Living the Holidays (1988), a philosophy of Judaism based on an analysis of the Sabbath and holidays, and Living in the Image of God: Jewish Teachings to Perfect the World (1998). He has written extensively on the theory and practice of pluralism and on the theology of Jewish-Christian relations. From 1974 through 1997, Greenberg served as founding President of CLAL — The National Jewish Center for Learning and Leadership, a pioneering institution in the development of adult and leadership education in the Jewish community and the leading organization in intra-Jewish dialogue and the promotion of Jewish unity. Prior to creating CLAL, Greenberg was the Rabbi of the Riverdale Jewish Center, an Associate Professor of History at Yeshiva University, and a founder, chairman and Professor in the Department of Jewish Studies of City College of the City University of New York.