The three significant amendments made to the U.S. Constitution after the American Civil War that specifically addressed the issue of slavery and civil rights are:
- The 13th Amendment - Abolished slavery.
- The 14th Amendment - Granted citizenship and equal protection under the law to all persons born or naturalized in the United States.
- The 15th Amendment - Prohibited the federal and state governments from denying a citizen the right to vote based on "race, color, or previous condition of servitude."
So the correct responses are:
- The 13th Amendment
- The 14th Amendment
- The 15th Amendment