The English Reformation was not a specific event which may be given a precise date; it was a long and complex process. ‘The Reformation’ is a colligatory concept, a historians' label which relates several lesser changes into an overall movement: it embraces a break from the Roman obedience; an assertion of secular control over the Church; a suppression of Catholic institutions such as monasteries and chantries; a prohibition of Catholic worship; and a protestantisation of services, clergy and laity. Though the political decision to introduce each phase of change and the legislative alteration of statutes and canons may be dated easily enough, it is much harder to ascribe responsibility and motive for such measures. Moreover, as the interest of historians has in recent years moved on from such political issues towards the administrative enforcement of new rules and popular acceptance of new ideas, so the identification and explanation of change have become even more difficult: the pace is likely to have varied from area to area, and the criteria by which progress should be measured are far from clear. It is therefore not surprising that there has been much dispute over the causes and chronology of developments in religion, and recent interpretations of the Reformation in England can, with some simplification, be grouped in relation to two matrices. One matrix relates to the motive force behind the progress of Protestantism: at one extreme, it could be suggested that Protestant advance was entirely the result of official coercion, while at the other it could be said that the new religion spread horizontally by conversions among the people.