Answer: It is believed that they invented the sailboat, the chariot, the wheel, the plow, maps, and metallurgy. They developed cuneiform, the first written language. They invented games like checkers. They made cylinder seals that acted as a form of identification (used to sign legal documents like contracts.
Explanation:
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Lord
Feudalism was a blend of judicial and martial practices in ancient Europe that prospered among the 9th and 15th centuries. Army, cultural, and administrative procedures all developed the feudal system, in which land was substituted for work. In a feudal system, a farmer or craftsman recognized as a vassal acquired a piece of land in the record for assisting a lord or master, particularly during times of war.
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Social Darwinism viewed the wealthy aristocracy, or upper class, as having the most socially valued class. It was believed that social status was largely heredity. This means that the social classes were divided due to genetics.