Editing Trinity Sunday (section)

===Anglicanism===
Trinity Sunday has the status of a [[Principal Feast]] in the Church of England and is one of seven principal feast days in the [[Episcopal Church (United States)]].<ref name="tec">{{Cite web |title=Trinity Sunday |url=https://www.episcopalchurch.org/glossary/trinity-sunday |website=The Episcopal Church}}</ref>

[[Thomas Becket]] (1118–1170) was consecrated [[Archbishop of Canterbury]] on the Sunday after [[Pentecost]] ([[Whitsun]]). His martyrdom may have influenced the popularity of the feast in England. This observance spread from Canterbury throughout the whole of western Christendom.<ref name=tec/>

The [[Athanasian Creed]], although not often used, is recited in certain [[Anglican]] churches, particularly those of [[High Church]] tendency. Its use is prescribed in the 1662 [[Book of Common Prayer]] of the [[Church of England]] for use on certain Sundays at [[Morning Prayer (Anglican)|Morning Prayer]], including Trinity Sunday, and it is found in many modern Anglican prayer books.<ref name="Church Union">{{Cite book |title=A Manual of Catholic Devotion: For Members of the Church of England |publisher=Church Literature Association |year=1969 |series=The Church Union |location=London |pages=511–513 |orig-year=1950|url = https://books.google.com/books?id=Jf9nmgEACAAJ}}</ref> It is in the Historical Documents section of the 1979 [[Book of Common Prayer]] ([[Episcopal Church in the United States of America|Episcopal Church]]), but its use is not specifically provided for in the rubrics of that prayer book.

Parishes with an [[Anglo-Catholic|Anglo-Catholic churchmanship]] follow a [[List of Anglican Church calendars|calendar]] where [[Corpus Christi (feast)|Corpus Christi]] is observed on the following Thursday, or in some cases the following Sunday.<ref name="Church of England">{{cite web |title=The Day of Thanksgiving for the Institution of Holy Communion (Corpus Christi) |url=https://www.churchofengland.org/prayer-and-worship/worship-texts-and-resources/common-worship/churchs-year/calendar |website=The Calendar |publisher=Church of England}}</ref>