Had carefully and come to the dates that "walk" in this literature. Reliable digital dating ancient times there and it's hard to say which of them are approximate, and are separated from the real chronology to cannon. The author has striven to ensure that the maximum extent possible not to pass bogus or inflated figures dating of ancient monuments, than rich and sick almost the entire "archeological literature that tends to unreasonable antiquating produced material, and for this purpose leads range of dates for one or another era, or specific materials. Sometimes, however, the author left a clearly inflated or differing dates, assuming that the very content of the book anything from them will not leave and would motivate the reader to reflect on them in order to estimate their true antiquity. The basis of the life of ancient societies lay fishing activities, speaking in different forms, which forms due to changes in climatic conditions from time to time consistently replaced, forcing people to adapt to changing conditions, then changed and used by technology and form public life. At the same fundamental achievements that have previously purchased, is not lost, and served as a base for further development.
So went the ongoing development. Changes in fishing activities have led to fix progress in the ideological field, and hence to changes in the cults. Simply put, alternated extracted food or prey items and plant collections, and were replaced by species of the most respected people of ancient animals, which they associated with these or other natural forces and the remains of which they used in their cults, that nature reproduces them in abundance, so people are not starving.