David Armitage is the Lloyd C. Blankfein Professor of History and Chair of the Department of History at Harvard University, where he teaches intellectual history and international history. A prize-winning teacher and writer, he is the author or editor of thirteen books, including The Ideological Origins of the British Empire (2000), which won the Longman History Today Book of the Year Award, The Declaration of Independence: A Global History (2007), which was chosen as a Times Literary Supplement Book of the Year, and Foundations of Modern International Thought (2013). He is currently working on a history of ideas of civil war from Rome to the present and co-authoring a manifesto urging long-range historical thinking against the short-termism of our times.