December

What are some major holidays in December other than Christmas and Hanukkah?

• Legit holidays: http://www.mahalo.com/december-holidays
• Not so legit holidays: http://library.thinkquest.org/2886/dec.htm

Why is Jesus Christ's birthday celebrated in December when most people agree he was born in the spring?

Does it say anything about society that we give other people presents on Jesus' birthday, or did the holiday simply evolve into something else?