In this piece, we share a story about the power of historical investigation as a means of developing critical literacy in young children. Drawing on the work of VanSledright (Social Educ 68:230, 2004), we outline four aspects of historical thinking as they relate to the development of critically minded citizens. We then turn to a discussion of a first-grade lesson on the First Thanksgiving Feast, reflect on the meanings children took from this experience, and explore possible implications and extensions.