The impact of Communism on the twentieth century was massive, equal to that of the two world wars. Until the fall of the Soviet Union in 1991, historians knew relatively little about the secretive world of communist states and parties. Since then, the opening of state, party, and diplomatic archives of the former Eastern Bloc has released a flood of new documentation. The thirty-five essays in this Handbook, written by an international team of scholars, draw on this new material to offer a global history of communism in the twentieth century.

In contrast to many histories that...