Book excerpt: The Routledge History of Nineteenth-Century America provides an important overview of the main themes within the study of the long nineteenth century. The book explores major currents of research over the past few decades to give an up-to-date synthesis of nineteenth-century history. It shows how the century defined much of our modern world, focusing on themes including: immigration, slavery and racism, women's rights, literature and culture, and urbanization. This collection reflects the state of the field and will be essential reading for all those interested in the development of the modern United States.