Explain how early civilizations in the neolithic era established states

During the early civilizatons in the neolithic era, advancement in agricultural technologies started to be created.
Along with this, the civilization also recongize a way to increase efficiency by separating the workload with job specialization. This lead to the formation of several groups and each of them held different responsibilities for civilization as a whole but controlled several leaders that appointed to overseen them. This basic mechanism is very similar to the interraction between the feds and the states.