This collection features decades between 1900-1999. Topics include:
World events -- The arts -- Business and the economy -- Education -- Fashion -- Government and politics -- Law and justice -- Lifestyles and social trends -- Media -- Medicine and health -- Religion -- Science and technology -- Sports.

This 8-volume set is a comprehensive resource covering the history of protest and revolution over the past 500 years, throughout the modern era of mass movements. The first historical encyclopedia of its kind, it contains: Specially commissioned entries in A-Z format, from an internationally diverse editorial board and contributors; Clear, concise explanations of events and larger social movements, and biographies of key people, ranging from 250 to 5000 words; Summaries of major uprisings and protest movements: the ideas, ideologies, and activists that propelled them, how they unfolded, their roots, goals, tactics, and influence, and their successes and failures.

This edited work is designed to give understanding to the topics, concepts and ideas that have motivated and shaped the fields of activism, civil engagement and social justice, as well as offering short biographies of all the major thinkers and leaders who have influenced, and continue to influence, the study of activism.