In this lesson, students analyze primary and secondary sources in an effort to answer the central historical question: Who was responsible for the Battle of the Little Bighorn? After a mini-lecture on the late 1800s Indian Wars, students read a textbook account of the battle, and then compare it to 2 documents: 1) a report by the War Secretary, and 2) an account by Kate Bighead, a Cheyenne Indian. Students answer guiding questions for all documents, followed by a class discussion. For homework, students write a new textbook account using primary source information.