With financial and methodological support from Simon Fraser University's (SFU) Institute for the Study of Teaching and Learning in the Disciplines, the authors created and implemented modules involving foreign-language instruction--in literary Chinese, Dari, and Latin--in three upper-division history courses. Luke Clossey taught the courses, and Vlad Vintila advised on the implementation and tracked student response and project success. This article describes the theoretical, pedagogical, and methodological background of the project, its execution, and its results. It concludes with recommendations for other teachers interested in running similar experiments.