Christians why is it that your religion is so close to ancient pagan religions??!!!?

[Brie]

Here are just a few pages among the thousands of sites
explaining this topic!
http://www.religioustolerance.org/chr_jcpa1.htm

http://www.religioustolerance.org/var_rel.htm

http://egyptcx.netfirms.com/

heres a book on it!!!!!
http://www.amazon.com/Christianity-Egyptian-Religion-Ahmed-Osman/dp/1591430461

So what is your explanation for this, or is it just huge coincidences??
especially in ancient egypt