If you would like to know some of the roots of Christmas and why many of us celebrate it, check out this link

http://people.howstuffworks.com/christmas.htm

Somethings you will find at this link
What is Christmas?
Why is Christmas such a big deal?
Why do people give each other presents on Christmas day?
Is December 25 really the day Jesus was born?
Why is there a small evergreen tree in your living room?
Why have you decorated this evergreen with ornaments, lights, fake snow and Mylar plastic tinsel?
Why do you have holly draped over the mantel and staircase?
Why is mistletoe hanging over the front door?

All my life I grew up with Christmas being a time when family and friends get together and celebrate - it was not until my 20s that I learned why America does Christmas the way it does.