Christmas is the most famous holiday of the year, and the word itself evokes images of Santa Claus, reindeer, snow, Christmas trees, egg nog and more. At the same time, it represents Christianity's most important event, the birth of the baby Jesus. Instantly, well known Christmas carols ring in your ears, pictures of the Nativity Scene become ubiquitous, or maybe you even picture nutcrackers or Scrooge and Tiny Tim.