Changes

Structures that begin to show differences in size and distinctive differences also begin to have greater evidence for administration. This is noticeable through objects such as seals and sealings, which likely indicates these large structures began to accumulate more goods, which required a form of control and organization utilizing seals. Large institutions, at least by the next period (called the Uruk; 4000-3100 BC), became one of the main employers of labor, suggesting that the accumulation of resources in larger administrative structures further accelerated social inequality where wealth was flowing to these elites, utilizing their wealth to employ other individuals.<ref>For information on the Uruk, see: Rothman, Mitchell S., ed. 2001. ''[https://www.amazon.com/gp/product/1930618034/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=1930618034&linkCode=as2&tag=dailyh0c-20&linkId=08eaeaa794d0351a708a72c8f470536e Uruk Mesopotamia & Its Neighbors: Cross-Cultural Interactions in the Era of State Formation]''. 1st ed. School of American Research Advanced Seminar Series. Sante Fe, NM: School of American Research Press.</ref> In addition, as warfare became established in society, slavery soon appeared. Slavery may have also developed as a form of punishment for debt.

==Badarian Culture==