The College, Career, and Civil Life (C3) Framework for Social Studies State Standards guides teachers to initiate complex inquiries by sparking students' disciplinary literacy and critical analysis of rich sources. With effective scaffolding and engaging content, elementary students can explore and contextualize complex historical topics. In this article, the authors present the findings of a fourth grade study in which students examined primary sources and trade books about Dr. Martin Luther King Jr., Frederick Douglass, and issues that affected the African American community. They explain how fourth grade students used this research as the basis for evidence-based essays.