WORLD CIVILIZATION

Detailed explanation-1: -In the middle class were artisans, merchants, farmers, and fishers. These people made up the largest group. The lower class were enslaved people (prisoners of war, criminals, Still others were enslaved because they had to pay off their debts) who worked on farms or in the temples.

Detailed explanation-2: -A social hierarchy developed in Sumerian city-states. Kings were at the top. Below them were priests and nobles. The middle ranks included skilled craftspeople and merchants.

Detailed explanation-3: -The Sumerians were among the first people to use agriculture. These Babylonian ruins are along the Euphrates River in Mesopotamia. With the highly efficient, organized nature of modern farming, it can be difficult to envision a world where agriculture was an innovative new technology.