This book is a comparative study of the meaning, characteristics, and development of pan-movements, a synonym for macro-nationalisms, in the last century. It seeks to clarify the origins and developments of all the important pan-movements as historical phenomena. Beginning with an introductory chapter defining the characteristics of nationalism per se, Professor Snyder, in this companion volume to his Global Mini-Nationalisms: Autonomy or Independence, considers specific pan-movements which have sought to combine existing nationalisms into a larger entity: Pan-Slavism, Pan-Germanism, Pan-Europeanism, the pan-movements of Turkey, Pan-Islamism, Pan-Arabism, Zionism, Pan-Asianism, Pan-Africanism, et al. Although studies of these pan-movements exist individually, this is the first comparative study of macronationalisms.