What makes people deny wrongdoing that their group has inflicted on others? Prior research argues that refusing to acknowledge past misbehavior contributes to intergroup conflict, making historical misinformation important to understand and address. In particular, feeling a lack of control may make people more vulnerable to these misperceptions—a claim we test in a preregistered survey experiment examining beliefs about the Palestinian exodus during the creation of the state of Israel. Consistent with expectations, Jewish Israelis who were asked to recall an event in which they lacked control were more vulnerable to arguments (incorrectly) denying any Jewish responsibility for the exodus. By contrast, corrective information successfully reduced misperceptions regardless of feelings of control. However, corrections had no effect on attitudes toward the outgroup or support for the peace process, which suggests that historical misperceptions may be more of a symptom of intergroup conflict than a cause of its persistence.