King Edward VI assigned a panel of clergymen to produce a book of uniform worship, to be used throughout the kingdom and published in the vernacular. The text of the book, which came into use from the 9th of June 1549, was influenced by royal advisor Thomas Cranmer, and remained largely traditional, incorporating only some ideas from the Protestant reformers in Europe. A second edition, incorporating more reformed ideas, was produced in 1552. One more edition was published in 1559 before the final edition of 1662 which remains in use today. See our entry on Act of Uniformity.
Editors. "First Book of Common Prayer". The Literary Encyclopedia. First published 17 June 2005
[http://www.litencyc.com/php/stopics.php?rec=true&UID=396, accessed 21 February 2017.]