The question of religion is hampered by the absence of data from the Neolithic, the seminal source of most constructs of civilization.
Note: this post set up for crosslink at The Gurdjeff Con
The ‘after the ice’ saga of the human adventure in the wake of the Last Glacial Maximum begins ca. -20,000. As Steve Mithen notes in After The Ice, “Human history began in 50,000 BC…Little of significance happened until 20,000 BC…Then came an astonishing 15,000 years that saw the origin of farming, towns, and civilization. By 5000 BC there was very little for later history to do; all the groundwork for the modern world had been completed. History had simply to unfold until it reached the present day.” This sounds like another ‘Axial Age’ lurking in the data