This major new reference work with contributions from an international team of scholars provides a comprehensive account of ideas and practices of nationhood and nationalism from antiquity to the present. It considers both continuities and discontinuities, engaging critically and analytically with the scholarly literature in the field. Volume I starts with a series of case studies of classical civilizations. It then explores a wide range of pivotal moments and turning points in the history of identity politics during the age of globalization, from 1500 through to the twentieth century. This overview is truly global, covering countries in East and South Asia as well as Europe and the Americas.