Domestication, how? The easiest way would probably be caring for orphans. No knowledge about this but on Animal Planet TV, Iíve seen a lioness taking care of a baby gazelle under natural conditions. So what chances are there that a primitive females, who maybe just lost a baby, cared for a young orphan animal after a successful hunt?
I believe that archaeology and history give an abundance of serious regressions. How many empires have collapsed? Olmecs, Inca, Phoenicians? How about the sea people, the dark middle ages, etc. What happened to the Moai Statue builders of Eastern island?
Have those statues or other features like that ever been dated? Now, this would seem to be useless in the past, since that would only reveal when the rock was formed. However, nowadays there are several dating methods that show exposure to light (opto-luminescence) or cosmogenic radio-activity, (10Be/26Al, 36Cl, etc). This could give an indication when the statues would have been sculpted.