In the paleolithic era people hunted and gather for are food.
During the old stone age. People used stone tools. People hunted and gathered for their food. Because of an unreliable supply of food , they lived anmadic lifestyle. Groups typically were no larger than 20-60.
The new stone age began in 9000 BCE when people learned to grow crops. People also learned how to domesticate most of the animals we use today. People were able to live in one place. Agriculture created a stable supply of food, allowing for am increase in population. Farming villages began arising, some of them eventually turned into cities.
Some areas of the world experienced a dramatic shift in their way of life:the development of civillzation