Pentecost comes from a Greek word meaning fiftieth and occurs fifty days after Passover. In the Christian church, it is celebrated as the birthday of Christianity. Pentecost is the day that the church was born. Christ was crucified, rose again, spent forty days with his disciples then ascended to heaven. Pentecost immediately followed. This year Pentecost falls on May 27, which is also Memorial Day weekend. The liturgical color is red, so lets celebrate by wearing red to church.