Book excerpt: Anglicanism arguably originated in 1534 when Parliament passed the Act of Supremacy, which transferred papal power over the Church of England to the king. Today, approximately 550 dioceses are located around the world, not only in England, but also everywhere that the British Empire's area of influence extended. With a membership estimated at around 80 million members the Anglican Communion is the third largest Christian communion in the world This second edition of Historical Dictionary of Anglicanism covers the history of Anglicanism through a chronology, an introductory essay, appendixes, and an extensive bibliography. The dictionary section has over 700 cross-referenced entries on important personalities, concepts and institutions, rituals and liturgy, events and national communities. This book is an excellent access point for students, researchers, and anyone wanting to know more about Anglicanism.