Slavery has almost always existed in the history of Homo sapiens. Even in the communal clan society, there were slaves, subject to the will of the dominant leader and his shaman assistants. The flock family's rebellious family was sacrificed to a totem, with further eating during a common meal. With the transition to a sedentary lifestyle and the construction of temples, slavery was a logical phenomenon, both in debt and the capture of prisoners in various wars. Slaves became valuable as they were used in various jobs when digging irrigation canals, building ziggurat temples, and any other work.