How were the first states formed?

Traditionally, the first states are associated with the emergence of world civilizations, that is, they were Ancient Egypt, Mesopotamia, and so on. They were formed on the basis of a society of language, territory and general economic interest, because, for example, it would be most convenient to conduct irrigation agriculture together, and not by separate tribes. In addition, writing appears, which is also the primary sign of the state and civilization, because bureaucratic moments can be recorded.