Which amendment abolished slavery in the United States?

The Thirteenth Amendment is the correct answer because it explicitly states that "neither slavery nor involuntary servitude, except as a punishment for crime, shall exist within the United States, or any place subject to their jurisdiction." Ratified in 1865, this amendment formally abolished slavery, marking a crucial turning point in American history and paving the way for future civil rights advancements. It was a foundational change in the legal and social fabric of the nation, ensuring that no individual could be held in bondage or involuntarily compelled to work.

The other amendments mentioned focus on different rights and freedoms. The Fifteenth Amendment addresses voting rights, specifically prohibiting the denial of the right to vote based on race. The Nineteenth Amendment extends voting rights to women, ensuring that women have the right to vote regardless of sex. The Twenty-fourth Amendment prohibits the use of poll taxes in federal elections, thus removing a financial barrier that could prevent some citizens from voting. Each of these amendments plays an important role in the expansion of civil liberties but does not pertain to the abolition of slavery.