This article provides a context for this special journal issue devoted to the topic of evidence-based prevention groups. To begin, a history of the field of prevention is presented. Second, the authors highlight how prevention groups have evolved as part of the broader history of prevention. Finally, the authors discuss the implications of the history of prevention and prevention groups for future research and practice in the field of group work. The overall goal of this article is to provide a base of knowledge that practitioners and researchers may utilize to expand and advance the field of prevention group practice and research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)