The Jacob Rader Marcus Center of The American Jewish ArchivesThe Jacob Rader Marcus Center of the American Jewish Archives (AJA), located on the historic Cincinnati campus of Hebrew Union College-Jewish Institute of Religion, was established in 1947 by renowned historian, Dr. Jacob Rader Marcus to collect, preserve, and make available for research, materials on the history of Jews and Jewish communities in the Western Hemisphere, including data of a political, economic, social, cultural, and religious nature.