is an original examination of radical political movements during Europe's long 19th century. It employs both national and transnational contexts, incorporating new debates in Atlantic history, empire studies and cultural history to give a comprehensive narrative of the period from 1775 to 1922. Rather than assessing revolution as a purely theoretical, socially-driven force or a structural phenomenon, the book presents revolution as a process of community building and cultural identification born from instances of acute social and political crisis. Taking into account various moments of political upheaval during the 19th century, including the French, Russian and 1848 revolutions, it explores the ways in which political actors attempted to construct new definitions of sovereignty and social unity in a period characterized by vast social, economic and governmental change. In a wide-ranging text that covers Britain and much of continental Europe in detail, as well as reaching out to the Americas and Atlantic and Mediterranean Worlds, Gavin Murray-Miller provides an authoritative transnational study of revolution in the 19th-century age of high nationalism.