We need some help because the river flooding is a big problem
Towns and Cities
We need help with making tools
Family-based communities often had 15-20 people in them. They were lead by a male elder. They also produced most of the things they needed.
People formed villages because they need help to control a flooding river. Another reason they formed villages was that they needed more protection from outsiders.
People formed towns and cities because the expansion of trade brought them new materials like iron which introduced iron-working with these tools they were able to get a surplus of crops and become wealthy