And Joseph also went up from Galilee, out of the city of Nazareth, into Judea, unto the City of David, which is called Bethlehem... To be taxed with Mary his espoused wife, being great with child. And so it was, that, while they were there, the days were accomplished that she should be delivered. And she brought forth her firstborn son, and wrapped him in swaddling clothes, and laid him in a manger, because there was no room for them in the inn. And, lo, the angel of the Lord came upon them, and the glory of the Lord shone round about them: and they were sore afraid. And the angel said unto them, Fear not: for, behold I bring you good tidings of great joy, which shall be to all people. For unto you is born this day in the city of David a Savior, which is Christ the Lord. And this shall be a sign unto you; Ye shall find the babe wrapped in swaddling clothes lying in a manger. And suddenly there was with the angel a multitude of the heavenly host praising God, and saying, Glory to God in the highest, and on earth peace, good will toward men. 

Luke 2:4-14

The first mention of December 25 as the birth date of Jesus occurred in A.D. 336 in an early Roman calendar. The celebration of this day as Jesus' birth date was probably influenced by pagan (unchristian) festivals held at that time. The ancient Romans held year-end celebrations to honor Saturn, their harvest god; and Mithras, the god of light. Various peoples in northern Europe held festivals in mid-December to celebrate the end of the harvest season. As part of all these celebrations, the people prepared special foods, decorated their homes with greenery, and joined in singing and gift giving. These customs gradually became part of the Christmas celebration.

The word Xmas is sometimes used instead of Christmas. The word Christmas entered the English language sometime around 1050 as the Old English phrase Christes maesse, meaning “festival of Christ.” Scholars believe the frequently used shortened form of Christmas—Xmas—may have come into use in the 13th century. The X stands for the Greek letter chi, an abbreviation of Khristos (Christ), and also represents the cross on which Jesus was crucified. This tradition began in the early Christian church. In Greek, X is the first letter of Christ's name. It was frequently used as a holy symbol.

In the 1800's, two more Christmas customs became popular; the decorating of Christmas trees and sending Christmas cards to relatives and friends.

 Many well-known Christmas carols, including “Silent Night” and “Hark! The Herald Angels Sing,” were composed during this period. In the United States and other countries, Santa Claus replaced Saint Nicholas as the symbol of gift giving.

The celebration of Christmas became increasingly important to many kinds of businesses during the 1900's. Today, companies manufacture Christmas ornaments, lights, and other decorations throughout the year. Other firms grow Christmas trees, holly, and mistletoe. Many stores and other businesses hire extra workers during the Christmas season to handle the increase in sales.