Since the beginning of theatre history, scandals have taken place and the variety of causes, processes and types of interactions makes them an interesting object of study. Theatre scandals often indicate clashes with a dominant ideology or with the ideology of a particular group in society. Sometimes, following a scandal, the attacked ideology changes and incorporates the possibility of the aesthetics or themes that caused the clash. In this way, scandals can cause dynamic changes within cultural systems. Next to theoretical considerations the contributors, all members of the IFTR Theatrical Event Working Group, present in their various case studies a wide cultural and chronological diversity of theatre scandals, all of which were experienced as very shocking moments in theatre history.