nomads were people that had no permanent homes and were most often hunter/gatherers. Hunter/gatherers were people who had to hunt for there meat and gather for their fruits, vegetables, etc. This was around the time period 8000 B.C.E
when people settled by rivers they learned they could start to do agriculture(crops). They also found out that they could raise animals(sheep, goats, cattle, mules) for food, resources, and labor.
how settling by rivers improved daily life people could transport, travel, and trade. People start to do agriculture, and also started to domesticate animals. There was a stable food supply from the fish, hunting, agriculture, and food/resources from farming animals. People started to build permanent homes which is more comfy than a portable home because they didn't have to move.