Christmas

Christmas or Christmas Day is an annual holiday celebrated on December 25 that commemorates the birth of Jesus of Nazareth. The date of commemoration is not known to be Jesus' actual birthday, and may have initially been chosen to correspond with either a historical Roman festival or the winter solstice. Christmas is central to the Christmas and holiday season, and in Christianity marks the beginning of the larger season of Christmastide, which lasts twelve days.



Although traditionally a Christian holiday, Christmas is widely celebrated by many non-Christians, and some of its popular celebratory customs have pre-Christian or secular themes and origins. Popular modern customs of the holiday include gift-giving, Christmas carols, an exchange of greeting cards, church celebrations, a special meal, and the display of various decorations; including Christmas trees, lights, and garlands, mistletoe, nativity scenes, and holly. In addition, Father Christmas (known as Santa Claus in North America and Ireland) is a popular mythological figure in many countries, associated with the bringing of gifts for children.

Because gift-giving and many other aspects of the Christmas festival involve heightened economic activity among both Christians and non-Christians, the holiday has become a significant event and a key sales period for retailers and businesses. The economic impact of Christmas is a factor that has grown steadily over the past few centuries in many regions of the world.

History

For many centuries, Christian writers accepted that Christmas was the actual date on which Jesus was born. However, in the early eighteenth century, scholars began proposing alternative explanations. Isaac Newton argued that the date of Christmas was selected to correspond with the winter solstice, which in ancient times was marked on December 25. In 1743, German Protestant Paul Ernst Jablonski argued Christmas was placed on December 25 to correspond with the Roman solar holiday Dies Natalis Solis Invicti and was therefore a "paganization" that debased the true church. In 1889, Louis Duchesne suggested that the date of Christmas was calculated as nine months after the Annunciation (March 25), the traditional date of the Incarnation.


source: http://en.wikipedia.org/wiki/Christmas