Book excerpt: Empire and Liberty brings together two epic subjects in American history: the story of the struggle to end slavery that reached a violent climax in the Civil War, and the story of the westward expansion of the United States. Virginia Scharff and the contributors to this volume show how the West shaped the conflict over slavery and how slavery shaped the West, in the process defining American ideals about freedom and influencing battles over race, property, and citizenship. This innovative work embraces East and West, as well as North and South, as the United States observes the 2015 sesquicentennial commemoration of the end of the Civil War. A companion volume to an Autry National Center exhibition on the Civil War and the West, Empire and Liberty brings leading historians together to examine artifacts, objects, and artworks that illuminate this period of national expansion, conflict, and renewal.