In 1925
Pope Pius XI instituted the Feast of Christ the King throughout the Roman Catholic Church in his
encyclical Quas primas. From its inception, the celebration resonated with many other denominations, and over the following half a century the same celebration (or a broadly similar one) was introduced to the calendars of many churches of
Lutheran,
Anglican,
Moravian,
Methodist,
Nazarene,
Reformed and
United Protestant tradition. The feast was incorporated into the
Revised Common Lectionary which became (and remains) the lectionary of a significant proportion of denominations worldwide. The readings appointed for the Sundays leading up to Christ the King all refer to the theme of God's Kingdom. In 1937, the US
Federal Council of Churches (a predecessor of the
National Council of Churches) recommended that the entire part of the Christian calendar between
Pentecost and
Advent, commonly called Ordinary Time and ending with Christ the King, be re-named
Kingdomtide. This proposal met with little support; however, two years later, the
Methodist Episcopal Church adopted the term for the second half of this time period, with other Methodist and Presbyterian churches later following the same practice. Precise criteria for determining when Kingdomtide began varied in different localities. A common practice was to start the season on the Sunday on or nearest 31 August, which gave Kingdomtide 13 Sundays every year; in some places, Kingdomtide began on the last Sunday in August, giving the season 13 Sundays in some years and 14 in others. In all cases, the last Sunday of Kingdomtide is observed as the
Feast of Christ the King. By 1992, the
United Methodist Church in the United States was believed to be the only denomination still using the term Kingdomtide, and even within the United Methodist Church the observance has now become a minority one. However, around the same time the term Kingdom Season started to be discussed in Anglican liturgical circles. Towards the end of the twentieth century, and into the early years of the twenty-first century, many Anglican churches issued new liturgies, or in some cases "alternative" liturgies to supplement the traditionally unifying liturgical text, the
Book of Common Prayer. Some of these churches have made provision for the marking of a Kingdom Season across the final four Sundays of the liturgical year, stretching from All Saints' Day to Christ the King. ==Anglican Usage==