There are non hierarchical societies littered throughout history, even today the zapatistas and peoples in rojava are non-hierarchical. Being in an organized social group, even numbering into the millions, does not necessitate hierarchy
The history of hierarchy*
There are non hierarchical societies littered throughout history, even today the zapatistas and peoples in rojava are non-hierarchical. Being in an organized social group, even numbering into the millions, does not necessitate hierarchy