This study examines whether and how five novice history teachers incorporated writing into their instruction. We analyzed observations, student writing, teacher feedback and interviews, and classroom artifacts from teachers' preservice program experiences and first 2 years of teaching. All novices included writing in their instruction; however; we find that their use of writing required different types of historical work and arguments. We also found that key aspects of classroom instruction leading up to writing shaped students' argument writing. The process leading up to writing--including task, prompt, related activities, and how they're situated in a unit--was a major factor in shaping the purpose of the assignment, the type of argument involved, and the historical work required to complete it. This article builds the case for explicit attention to the historical work and type of argument embedded in assignments, instruction, and student work in order to strengthen history teacher education and research in history classrooms.