Why was Hammurabi a more effective ruler for their city-state

Hammurabi was a great leader because he administered justice. He was known as a law-giver, and was very thorough. When he published his code of law (now known as Hammurabi's Code) it was published in every city of his realm.

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bibliography and citations to credit the sources hope this you if not my deepest of apologize ^w^

answer; the period of time known as the middle ages;