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Edited by Peter K Smith, Goldsmiths, University of London, U.K.
Email: p.smith@gold.ac.uk
Contributions are invited on this topic. Historical can be interpreted in a broad way – over centuries, decades, or years (for example thinking of cyber aggression). Over historical time, the nature of aggression has changed, definitions and research methods have changed, and prevalence may have gone up, or down, for different types of aggression, and in different countries.