This introduction sets the academic and historical context for the four articles that follow. It considers how the modern legal disestablishment of religion has changed both religion and law and the nature of the interaction between them. It further argues that there has been insufficient academic attention given to the effect of disestablishment on both religion and the discourse about religion in modern secular society. This introduction sets the academic and historical context for the four articles that follow. It considers how the modern legal disestablishment of religion has changed both religion and law and the nature of the interaction between them. It further argues that there has been insufficient academic attention given to the effect of disestablishment on both religion and the discourse about religion in modern secular society.