The holiday that celebrates the birth of Jesus Christ is Christmas. Celebrated on December 25th, Christmas is a major Christian festival that commemorates the nativity of Jesus, believed to be the Son of God. The holiday is marked by various traditions, including church services, gift-giving, festive meals, and decorations, such as Christmas trees and lights. Many people also observe Advent, a period of preparation leading up to Christmas day. Over time, Christmas has evolved into a widely celebrated holiday worldwide, blending religious significance with cultural and secular customs, making it a time for family gatherings and community celebrations.