A principal day of the Christian year, Pentecost, is celebrated on the fiftieth day after Easter. Pentecost means "fiftieth day" in Greek. The Christian church celebrates this day as the coming of the Holy Spirit upon the Apostles and others assembled in Jerusalem. It points to the beginning of the Christian church and the sending forth of the message throughout the world. It is often referred to the birthday of the church.
- Liturgical Color: Red
- Type of Holyday: Feast
- Time of Year: 50 days after Easter
- Duration: One Day (or an entire octave in older custom)
- Celebrates/Symbolizes: The outpouring of the Holy Spirit on the Apostles and the founding of the Church
- Alternative Name: Whitsunday
- Scriptural Reference: Acts 2:1-11; The entire Book of Acts of The Apostles