Final answer:
The 13th, 14th, and 15th Amendments to the Constitution abolished slavery, granted African Americans citizenship and equal protection under the law, and gave black males the right to vote.
Step-by-step explanation:
The 13th, 14th, and 15th Amendments to the Constitution were ratified after the Civil War and represented significant changes in the lives of African Americans who were previously held in slavery.
The 13th Amendment abolished slavery in the United States, officially ending the institution of slavery and freeing enslaved individuals.
The 14th Amendment granted African Americans citizenship and equal protection under the law. It also prohibited states from depriving their residents of basic rights without legal proceedings.
The 15th Amendment gave black males the right to vote, ensuring that race could not be used as a pretext to deny suffrage.