This repository includes datasets developed as part of the Data Expeditions program sponsored by the Information Initiative at Duke (iiD). The datasets were put together by teams of graduate students for Duke faculty to use in their courses. Each dataset comes with suggested questions amenable to both exploratory data analysis and advanced mathematical/statistical modeling. The datasets concern topics from multiple disciplines. The iiD, in collaboration with the Duke Social Science Research Institute and the Duke Library, makes Expeditions datasets available in this repository with the intention of allowing many Duke faculty and students to take advantage of these resources for learning quantitative methods