Which amendment abolished slavery in the United States?

The Thirteenth Amendment abolished slavery in the United States, making it a crucial milestone in American history. Ratified in 1865, this amendment formally ended the practice of chattel slavery and involuntary servitude, except as punishment for a crime. It was a significant outcome of the Civil War and reflected the nation's shift toward recognizing freedom and human rights.

The First Amendment pertains to freedoms concerning religion, expression, assembly, and the right to petition, which is unrelated to the institution of slavery. The Nineteenth Amendment granted women the right to vote, marking a crucial advancement in gender equality, but it does not pertain to the issue of slavery. The Twenty-fourth Amendment eliminated poll taxes in federal elections, further protecting voting rights but not addressing slavery. Therefore, only the Thirteenth Amendment directly addresses the abolition of slavery, making it the correct answer.