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Sumerian society developed a social order with three social classes. The upper class consisted of his ruler, his top officials, powerful priests, wealthy merchants, and large landowners. Farmers and skilled workers filled the middle class. The lowest class was made mainly out of slaves.

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The scribes made marks on tablets of wet clay to show their writing. At first they drew simple pictures to stand for different items. Then soon they developed a new writing system that could record far more than numbers of objects. Writing was really useful to set up schools to train scribes. Writing went from a small priority to a huge priority.

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At first the Sumerians depended on their priests to tell them what the gods wanted, because the priests were the only ones that know how to communicate with the gods. They were the only ones that could do a lot of things the kings couldn't do, until the kings became the rulers of the Sumerians. The kings caused a lot of wars and conflicts with other tribes. It was weird though because the kings were sent by the gods to control the city. It was really different for the Sumerians once the kings became the rulers of the whole Sumerian tribe.

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Scribes recorded information by pressing wedge-shaped marks into clay. They also made a system of writing based on hieroglyphs. They began as pictographs then evolved to many new, smarter ways of writing.

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Two agricultural techniques  made Mesopotamia into productive farmland. The first was irrigation , or a system for watering crops. The second technique was a new way of preparing the ground for planting by using a plow. Using these techniques, they developed  new ways to plant and harvest crops.