Anthropology why did city and states emergence within a few thousand years of each other?

Question

Anthropology why did city and states emergence within a few thousand years of each other?

Answer 1

I imagine it worked something like this.

When people first adopted agriculture there were nothing but villagers of farmers. Eventually, in some areas some of the villages started to get bigger and wealthier for some reason. These villages started taking over the country around them and making it support them with taxes. This made them local centers and encouraged people to move into them and they kept on getting bigger and bigger. This is how the first cities came about.

As an area's population grew multiple cities would spring up and take over their immediate countryside. Then they'd start to fight with each other and one city would take over the others and tax them, the way it taxed the villages around itself. That was how states got started.

Answer 2

Simple, the first cities were trade centers, then later when more and more ressources were found (ie: gold stuff), and the world was getting richer and richer, wars began to erupt between city states, and eventually the best armies were recolting the most victories, reaching a point were they conquer many city states to form the first country, as they are today. So its mainly related to the exploitation of ressources, as mining skills were getting more advanced and food ressources were enough to sustain growth, then expension began, and the largest trading partners finally came together either by force or by cultural and social interests (alliance against stronger ennemies, ect...).