This article reviews the developments in significant pedagogical and research domains in TESOL during the 50-year history of "TESOL Quarterly." It situates these developments in the shift from a modernist to postmodern orientation in disciplinary discourses. The article also considers the changes in modes of knowledge dissemination in the journal by examining the changes in locations of research, authorship, article genres, and research methods. While there is an evolving diversity in the disciplinary discourses of TESOL that can appear to be a threat to the field's coherence, the article argues that this diversity can contribute to a more plural knowledge base and constructive disciplinary growth for TESOL.