Hammurabi's Code set laws in the Babylonian empire that applied to everyone. Including Hammurabi himself. This was important because it had never been done before, at least not at such a bit level. Hammurabi's Code inspired many countries to do the same, which led to monarchs being less powerful and was another step in the direction of democracy.
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There were no longer slaves involved
D, because whether or not the rivers flow into the mediterranean has no effect on early civilization.
Answer:
Even still, the revolution marked the end of a dynasty that had lasted 300 years and concluded with the seizure of power by a small revolutionary group. The tsar was replaced with a Council of People's Commissars and private ownership was abolished.