What is Christmas Pageant?

I didn't find any perfect and elaborate answer to The Question, What is Christmas Pageant?

Currently researching about The Christmas Pageant, as Event, As Phenomena and As Philosophy.

Sunday, December 19, 2021, Albany, NY: Its Morning in United States, 12 Days Ahead is The New Year Saturday, 1 January 2022 and 6 Day Across The Biggest Arrival To Happen on Saturday, 25 December 2021. In quest of defining Christmas Pageant, Let's check the happenings around world:

Pageant 2021 - St. Peter's Episcopal Church, Arlington VA

Fourth Advent Sunday, 19 December • Children’s Christmas Pageant @ Immanuel Stockholm

Children's Christmas Pageant, 4pm, Sunday Dec 19th, Church of St. Timothy, West Hartford, CT

Rockport Pageant 2021 Postponed: The Rescheduled 76th Annual Rockport Christmas Pageant on Sunday, December 19 at 5:00. The Location is Dock Square and Main Street Rockport, MA 01966. As per the organizer Rockport Art Association & Museum “Participants of all ages are still welcome!” Check Details @ Christmas Pageant Event Page.