I'm fairly sure that anthropological evidence shows, pretty conclusively, that early society was a good deal more violent (on account of violence inflicted by p

I'm fairly sure that anthropological evidence shows, pretty conclusively, that early society was a good deal more violent (on account of violence inflicted by people) than what we have today. (I may well be mistaken about this, but I have a recollection of hearing something to the effect that all pre-columbian adult skeletal remains found in the Americas show evidence of violence (not that Columbus improved things, of course.))