The document discusses the religious changes that occurred in England under King Edward VI from 1547 to 1553. It analyzes the progression of reforms in four phases: (1) the removal of Catholicism, (2) a period of Protestant activity without official sanction, (3) the establishment of a Protestant form of worship and doctrine, and (4) the completion of reforms that established full Protestantism in England. Key figures like Archbishop Cranmer and the Book of Common Prayer drove the country further towards Calvinism, replacing Catholic rites and establishing Protestant sacraments and services. However, the extent to which the general population became truly Protestant is difficult to measure, as private Catholic worship continued in many cases.