The last Sunday of the liturgical year, the one before Advent. The Solemnity of Our Lord Jesus Christ, King of the Universe, commonly referred to as the Feast of Christ the King, Christ the King Sunday or Reign of Christ Sunday, is a feast in the liturgical year which emphasises the true kingship of Christ. The Catholic, Lutheran, Anglican, Moravian, Methodist, Nazarene, Reformed and United Protestant churches celebrate the Feast of Christ the King. The feast emphasizes the true kingship of Christ after the upheavals resulting from the First World War and the end of all four major monarchies in mainland Europe. It was meant to respond to the rise of atheism and secularization. For the Roman Rite, it was instituted by Pope Pius XI in 1925. In 1970, its observance was moved from end of October to the last Sunday of Ordinary Time and thus to the end of the liturgical year. The Methodist, Anglican and Presbyterian Churches often observe this as part of the liturgical season of Kingdomtide, which runs between the Fourth Sunday before Advent and the Feast of Christ the King. The earliest date on which the Feast of Christ the King can occur is 20 November and the latest is 26 November. It heralds the end of Ordinary Time, which continues up until the First Sunday of Advent. Depending on the year, Saint Andrew's Day, significant in some cultures, may fall prior to the First Sunday of Advent. It is contained in the Revised Common Lectionary. It is also observed on the same computed date as the last Sunday of the Liturgical year, the Sunday before the First Sunday of Advent, by Western Rite parishes of the Russian Orthodox Church Outside Russia. Catholics adhering to the Extraordinary Form of the Roman Rite use the General Roman Calendar of 1960 and continue to observe the Solemnity on the date established in 1925, the last Sunday in October. Wiki link Dates computed from the General Roman Calendar. Text: Wikipedia (CC BY-SA).