The book that you have now opened and are starting to read is unlikely to fully explain the entire past of mankind. It is only intended to raise questions and report a number of historically reliable and a number of alternative scientific information. You can believe alternative information, or you can not believe, but in order to believe or not believe, you must first assess the weight of such information. This is what we will do, and along the way, of course, we will discover secrets - large and small, significant and not too much!