Final answer:
The three Civil War Amendments are the Thirteenth (abolishing slavery), Fourteenth (granting citizenship and equal protection under the law), and Fifteenth (ensuring voting rights regardless of race, color, or previous servitude).
Step-by-step explanation:
The three new amendments that were added to the Constitution as a result of the Civil War are known as the Civil War Amendments. These include the Thirteenth, Fourteenth, and Fifteenth Amendments. They were crucial in extending civil rights and liberties to former slaves.
The Thirteenth Amendment abolished slavery throughout the United States. It was the first step toward establishing equality for all Americans by legally ending the practice of slavery.
The Fourteenth Amendment is notably significant for granting citizenship to all persons born or naturalized in the United States, which included former slaves.
It further ensured equal protection under the law and laid the foundation for civil rights expansions by prohibiting states from infringing upon the privileges or immunities of citizens, depriving any person of life, liberty, or property without due process, and denying equal protection of the laws.
Finally, the Fifteenth Amendment sought to protect the rights of African American men to vote by stating that the right to vote could not be denied based on race, color, or previous condition of servitude, thus recognizing for the first time a right to vote for a broader population.
Altogether, these amendments played a critical role in shaping the nation's commitment to equality and justice for all citizens, notwithstanding their historical backgrounds.