This is an excellent, concise, historiographical article, which conveys the complexities of history in an accessible way and works well toward the end of a Civil War unit. This is an effective tool to get students talking about history. You can assign this for homework or classwork. Ask students to summarize each historian's viewpoint and then rank order the viewpoints in the order that was most convincing to the student (students should be prepared to discuss why they were convinced or not). Then, put students in small groups and have them share their answers. Then, open this up to a class discussion. I had some great discussions from this article. This article can also be used as a basis for an essay. The most convincing viewpoint would serve as the student's thesis, and the next most convincing (and, possibly, other viewpoints) could comprise the counterclaim.