写一篇以“happy Christmas”为主题的一篇英语小短文（15句话）,

Christmas Day
On December 25, people around the world celebrate the birth of Jesus Christ. Some people celebrate by giving gifts. Children may be thanking Santa Claus for new toys. They may also be going to church with their families. Christmas has so many traditions and symbols associated with it, that it's hard to determine exactly how it came to be the celebration it is today.