The first documentation about slavery in human history can be found in the

the Code of Hammurabi.

Explanation:

The Code of Hammurabi is a Babylonian code of law of ancient Mesopotamia, dated back to about 1754 BCE. The sixth Babylonian king activated and it constitutes one of the most ancient deciphered writings of important length in the world. Half of the code deals with matters of contract.  

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`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".