Carl J. Rheins was the exec­u­tive direc­tor emer­i­tus of the YIVO Insti­tute for Jew­ish Research. He received his Ph.D. in Mod­ern Euro­pean His­to­ry from the State Uni­ver­si­ty of New York at Stony Brook and taught cours­es on the Holo­caust at sev­er­al major universities.