Maundy Thursday April 22 inclusive, but these dates fall on different days depending on whether the Gregorian calendar or Julian calendar is used liturgically. Eastern churches generally use the Julian calendar and celebrate this feast throughout the 21st century between April 1 and May 5 in the more commonly used Gregorian calendar. The liturgy held on the evening of Maundy Thursday initiates the Easter Triduum, the period which commemorates the passion, death, and resurrection of Jesus; this period includes Good Friday and Holy Saturday, and ends on the evening of Easter. The Mass of the Lord's Supper or service of worship is
Maundy Thursday and English "maund", which as a verb means to beg and as a noun refers to a small basket held out by maunders as they maunded. Other sources reject this etymology. The Washing of the Feet is a traditional component of the celebration among many Christian groups, including the Armenian, Ethiopian, Eastern Catholic, Schwarzenau (German Baptist) Brethren, Church of the Brethren, Mennonite, and Roman Catholic traditions. The practice is also becoming increasingly popular as a part of the Maundy Thursday liturgy in the Anglican/Episcopal, Lutheran, Methodist, and Presbyterian churches, as well as in other Protestant denominations. In the Catholic Church