I love, love, love this video. Beautiful and chocked full of information.
This is the expanded version with more images at the end and a 5 minute beginning that is amazing but not related to religion per se. Its worth the watch if you really want to get a good drink of awesome sauce. The evolution of religion starts at about 5 minute mark. Relatively brief but if you ponder it after the video you will understand the overview of how religions mutated over time and why.
To argue with a man who has renounced the use and authority of reason, and whose philosophy consists in holding humanity in contempt, is like administering medicine to the dead, or endeavoring to convert an atheist by scripture.