Foot washings, public acts of penance and traditional ceremonies mark the holy day.
April 5, 2012 Pope Benedict XVI (R) washes feet of priests during the Mass of the Lord's Supper on Holy Thursday at the basilica of Saint John Lateran in Rome. The Paschal Triduum (Easter Triduum) starts with the Mass of the Lord's Supper. In the Gospel of John, Jesus washes the feet of his disciples on Holy Thursday, the day before he was crucified. ALBERTO PIZZOLI/AFP/GETTY IMAGES Buy Photo