Specialization of Labor
For tens of thousands of years, mankind survived by doing whatever they could to find food and shelter for themselves and their families. A clan of individuals had to do all the tasks necessary for life, including hunting, dressing kills, gathering, making tools, and making shelters.
As societies became larger and more complex, individuals began to specialize in different types of jobs. It was no longer necessary for one individual to learn how to do every kind of work. Instead, one person could specialize in making pottery, while another could specialize in weaving cloth.
As a result of this specialization, men and women were able to hone their skills. The quality of their pottery, cloth, or other products became increasingly better. As a result, the quality of life for everyone increased dramatically.