This is the generally accepted criterion for civilization: – appearance of urban centers;

– full-time specialists (craftsman, merchants, officials, priests etc.), who worked for organizations that could command surplus from peasants;

– monumental public building;

– sizeable surplus product, withdrawn by an elite from taxes or tribute;

– isolating of ruling groups, including priests, military leaders, officials;

– appearance of written language and numerical notation, from which there emerge predictive sciences – arithmetics, geometry, and astronomy;

– development of the sophisticated artistic style;

– appearance of distant trade;

– social solidarity through ideology and public belief systems.

– state formation (Childe 1950).

Which are mentioned in this article? How are they described as being connected to agriculture?