Describe the cultural shift that occurred in the fertile crescent between 4000 and 3000 bce

Between 4000 and 3000 BCE, the agricultural villages of the Fertile Crescent turned into prosperous cities with developed specialized skills. 
This happens after the development of inventions suchas Grain mills and pottery Klins, which allow that society to produce grain in higher quantity with shorter time and effort, and allow them to create various type of tools and artworks from the pottery Klins.