About the Author

The editor, Klaus Tenfelde, b. 1944, has been Professor of Social History and Social Movements since 1995, and runs the Institute for Social Movements, a central institute of the Ruhr University in Bochum. He is also president of the committee for the Library of the Ruhr District Foundation and has published many books and articles, primarily on the social history of the 19th and 20th century.