I went to Amazon to look for the book by Don Richardson called "Eternity in Their Hearts," which is a fascinating book by the way, and found that the sample pages they give there is all about the "unknown god" that happened about 600 years before Christ. There's so much in this book and one of the most interesting things to me is that before Buddhism, etc in China, China was monotheistic. The ancient Chinese characters have symbols that reflect the creation, Noah's flood, etc. Fascinating stuff.