They pledged mutual allegiance
People of the highest social class in society belong to the<span> upper-upper class, aristocrats, or elites. </span>
What’s the context for this question
Answer:
Technology. Sumerians invented or improved a wide range of technology, including the wheel, cuneiform script, arithmetic, geometry, irrigation, saws and other tools, sandals, chariots, harpoons,
Explanation: