What was a common purpose of the three amendments added to the United States Constitution between 1865

During Reconstruction, three amendments to the Constitution were made in an effort to establish equality for black Americans. The Thirteenth Amendment, adopted in 1865, abolishes slavery or involuntary servitude except in punishment for a crime.

Explanation:

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explanation:

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."