[2]
Many people celebrate Christmas Day on December 25. The day celebrates Jesus Christ's birth. It is often combined with customs from pre-Christian winter celebrations. Many people erect Christmas trees, decorate their homes, visit family or friends and exchange gifts.
Links:
[1] http://www.ctio.noao.edu/noao/content/Christmas-Day
[2] http://fc01.deviantart.net/fs38/f/2008/329/9/2/Christmas__Santa_Flying_1_by_vladstudio.jpg