Christianity: Roman Catholic and Protestant

Christmas is an annual celebration commemorating the birth of Jesus of Nazareth, the Messiah whose message and self-sacrifice began the Christian religion.

Date details: Begins at sundown on Dec. 24 annually and continues with an all-day celebration on Dec. 25.

General practices: Many celebrate this holiday by giving gifts, attending church services, decorating Christmas trees and visiting family.

Potential accommodations: This is a national holiday in the United States, so special accommodations are likely not required.