For many years people had to survive on the nature (This is the Paleolithic Age) when men would hunt the animals and women would gather wild berries. These people (also known as nomads) would wander around in the wild looking for animals to hunt and berries to pick so they could eat and survive.
I think we'll finish building this soon
People had made a new revolution and started to plant wild berries and farm. These nomads also started to domesticate animals to grow food and get milk and meat from the animals.
The population quickly rose from 2 million to 90 million. This happened because people had enough food to survive the difficulties of life and life was much easier now.
I'll give you this for a basket of food.
People could stay in permanent villages now where there was rivers or fertile ground so they could farm and grow crops. Now these people are not nomads but are in the Neolithic Age.
I hope so, it's wet out here
Due to all the farming people now had extra food and couldn't eat it all. This was because there was larger communites and they all worked together to farm for food.
Theres so much food! how will I ever eat it all?
Because people had extra food people had new jobs and made better farming equipment and invented the ox driven plow and the wheel. These people traded their inventions for food.