Long ago, life was hard for people in the Paleolithic times. people depended of nature for survival. while men were hunting women were gathering plants. They were nomads, never staying in one place. and moving when the animals and plants were gone.
Then in the Agricultural Revolution , the people changed their ways of getting their food. They found out about farming and learned how to grow their own foods. The people also found out how to domesticate some wild animals to use them for meat/milk and ect.
In the neolithic age , people had their desired jobs instead of everyone farming. while the population is growing more with the surplus amount of food and the permanent homes from the people building. life was much easier than before.