The Sunday before Easter at which Jesus' triumphal entry into Jerusalem (Mt 21:1-11, Mk 11:1-11a, Lk 19:29-40) and Jesus' Passion on the cross (Mt 26:36-27:66, Mk 14:32-15:47, Lk 22:39-23:56) are recalled. It is also known as the Sunday of the Passion. Palm Sunday is the first day of Holy Week. Red is the liturgical color for the day. The observance of Palm Sunday in Jerusalem was witnessed by the pilgrim Egeria in about 381-384. During this observance there was a procession of people down the Mount of Olives into Jerusalem. The people waved branches of palms or olive trees as they walked. They sang psalms, including Ps 118, and shouted the antiphon, "Blessed is he who comes in the name of the Lord!" The Palm Sunday observance was generally accepted throughout the church by the twelfth century. However, the day was identified in the 1549 BCP as simply "The Sunday next before Easter." The blessing of branches and the procession were not included. The 1928 BCP added the phrase "commonly called Palm Sunday" to the title of the day. A form for blessing palms was provided by the Book of Offices (1960). The 1979 BCP presents the full title for the day, "The Sunday of the Passion: Palm Sunday" (BCP, p. 270). The liturgy of the palms is the entrance rite for the service.