They also figured out what domestication is they started to put animals in fences and breeding them so all of this lead up to the Neolithic revaluation.
Now it is my turn in the Neolithic age they perfected irrigation and made bigger farms.
So they had a surplus of food. Which means instead of everyone needing to help out hunting or collecting they are able to decide what job they want to do.
When people started doing other jobs. They started to get new things which they could trade other that their tribe needed.
The Neolithic people also started to learned how to write. Their was also a social hierarchy.
Social hierarchy means how you are ranked in your tribe or something and for example if someone has a lot of money they might be at the top of it