In many parts of the world, Christmas is the day when people celebrate the birth of Jesus Christ in Bethlehem two thousand years ago. People who remember Christmas as a religious holiday celebrate the birth of Jesus and his coming into this world. To them, he is recognized as the Son of God and the Savior of the world. According to the Bible, Jesus was born in a manger because there was no room for him and his parents, Mary and Joseph, in an inn. Today, people often attend church, organize family gatherings, and decorate their homes and businesses with real or artificial Christmas trees. People feel the giving spirit and donate their time and money to worthy causes, or provide volunteer service to the needy. Christmas is also celebrated as asecular holiday when parents and children talk about Santa Claus and Rudolf the Red NoseReindeer.