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.  

brainliest means the answer that is best and you found it very

if you ask any question and 2 persons gave you answer for your question and the answer of one person you liked the most and found it most the we can mark it as brainliest . at the side of every person's answer an option of brainliet then we can appericiate the user by marking it as brainlist

if someone marks our answer as brainliest then we can get ranks also

done.