Slag commented:

Rig, would you consider it evidence that throughout the entire history of modern man he has been a religious creature? Everywhere he has been he has left evidence that he worshipped something greater than himself. Idols, icons, pyramids, temples, music, scripture, grave markers, on and on, all evidence of a god.

I would point out that it is equally true that throughout the entire history of modern and ancient man there have been powerfully persuasive and highly influential doubters.

I recommend to you a wonderful book called Doubt: A History, 1965, by Jennifer Michael Hecht. She goes back to ancient Egypt, Greece, Rome, India, China, and brings it up to date. I learned a great deal about the history of philosophy and religion in both ancient and modern times, including and cross-referencing such fields of thought as the Cynics, Stoics, Hinduism, the history of Judaism, Buddhism, Confucianism, Taoism, Christianity, and coming up to very modern thought, such as that of Tillich, Buber, and countless others.
An enthusiastic recommendation!

Dave Oesterreich