The 1559 Book of Common Prayer, a major component of the Elizabethan Religious Settlement, is legally introduced as the liturgy of the Church of England.

The 1559 Book of Common Prayer, also called the Elizabethan prayer book, is the third edition of the Book of Common Prayer and the text that served as an official liturgical book of the Church of England throughout the Elizabethan era.

The Elizabethan Religious Settlement was the religious and political arrangements made for England during the reign of Elizabeth I (1558–1603). The settlement, implemented from 1559 to 1563, marked the end of the English Reformation. It permanently shaped the Church of England's doctrine and liturgy, laying the foundation for the unique identity of Anglicanism.

The Act of Uniformity 1558 was an act of the Parliament of England, passed in 1559, to regularise prayer, divine worship and the administration of the sacraments in the Church of England. In so doing, it mandated worship according to the attached 1559 Book of Common Prayer. The act was part of the Elizabethan Religious Settlement in England instituted by Elizabeth I, who wanted to unify the church and abolish the influence of the Catholic Church in England and Wales. Other acts concerned with this settlement were the Act of Supremacy 1558 and the Thirty-Nine Articles.

The Church of England is the established Christian church in England and the Crown Dependencies. It was the initial church of the Anglican tradition. The Church traces its history to the Christian hierarchy recorded as existing in the Roman province of Britain by the 3rd century and to the 6th-century Gregorian mission to Kent led by Augustine of Canterbury. Its members are called Anglicans.