On the Sunday before Easter in Christian churches around the world hosannas will be said, sung, and shouted as Christians celebrate Palm Sunday, the start of Holy Week.  Palm Sunday marks the day when Jesus entered Jerusalem after a time away.  He rode on a donkey -- a mark of humility -- but was greeted like a king with crowds in the streets shouting “Hosanna!” and lining the streets with their coats.  The events of the day fulfilled a long-held prophecy heralding the coming of the Messiah according to Christian theology.  

In Christian art, depictions of the events of Palm Sunday are often called “Christ’s Entry into Jerusalem” or some variation thereof.  Key elements include Jesus (often with a halo around his head) riding a donkey and palm branches.  However, many Northern European artists did not actually know what a palm branch looked like, especially in the Middle Ages, so the foliage may vary.  

In many depictions of Palm Sunday have a sad, hollow feeling to them, too.  While Palm Sunday often feels like a celebration, it is a hollow celebration because Jesus was executed just a few days later.  Palm Sunday begins what is referred to as Holy Week -- a week of events and remembrances of the final days in Jesus’ life.