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
Royal Maundy "Maundy", and the Royal Maundy service evolved from Jesus' command to his disciples. By the fourth or fifth century a ceremony had been developed following Holy Communion on Maundy Thursday, in which high Church leaders washed the feet of the poor. The ceremony, known as the "pedilavium", was performed daily in some monasteries; in 992, Bishop Oswald of Worcester died during its performance. The first English monarch to be recorded as distributing alms at a Maundy service was John, who on 15 April 1210 donated garments, forks, food, and other gifts to the poor of Knaresborough, Yorkshire. John is also