The Last Supper, with communion and often foot-washing; the altar is stripped. Maundy Thursday, also referred to as Holy Thursday, Thursday of the Lord's Supper, or Passover among other names, is a Christian feast during Holy Week that marks the beginning of the Paschal Triduum, and commemorates the Washing of the Feet (Maundy) and Last Supper of Jesus Christ with the Apostles, as described in the canonical gospels. It is the fifth day of Holy Week, preceded by Holy Wednesday (Spy Wednesday) and followed by Good Friday. "Maundy" comes from the Latin word mandatum, or commandment, reflecting Jesus' words "I give you a new commandment." The date of the day will vary according to whether the Gregorian calendar or the Julian calendar is used. Eastern churches generally use the Julian system. Wiki link Dates computed from the Revised Common Lectionary's calendar; denominations differ in the details. Text: Wikipedia (CC BY-SA).