In rethinking and reframing the American national narrative in a wider context, the contributors to this volume ask questions about both nationalism and the discipline of history itself. The essays offer fresh ways of thinking about the traditional themes and periods of American history. By locating the study of American history in a transnational context, they examine the history of nation-making and the relation of the United States to other nations and to transnational developments. What is now called globalization is here placed in a historical context. A cast of distinguished historians from the United States and abroad examines the historiographical implications of such a reframing and offers alternative interpretations of large questions of American history ranging from the era of European contact to democracy and reform, from environmental and economic development and migration experiences to issues of nationalism and identity. But the largest issue explored is basic to all histories: How does one understand, teach, and write a national history even as one recognizes that the territorial boundaries do not fully contain that history and that within that bounded territory the society is highly differentiated, marked by multiple solidarities and identities? Rethinking American History in a Global Age advances an emerging but important conversation marked by divergent voices, many of which are represented here. The various essays explore big concepts and offer historical narratives that enrich the content and context of American history. The aim is to provide a history that more accurately reflects the dimensions of American experience and better connects the past with contemporary concerns for American identity, structures of power, and world presence.