Part 2. Theoretical considerations
Chapter 1. About the formation of human knowledge
1.4. power societies
The widely shared model about the formation of empires tells us that following the emergence of agriculture sometime 12,000 years ago the sum of societal practices and knowledge that had been accumulated and transmitted from generation to generation over the preceding 100,000 years or so by tribal societies gradually disintegrated. This disintegration of the tribal model spread over a few thousand years and was paralleled by trials and errors in setting up power societies. This process that spanned roughly 7-8000 years culminated, some 5000 years ago in Sumer, in Egypt, and in China, with the institutionalization of empires that reproduce over the generations which is what gave rise to civilizations.