How did the thirteenth fourteenth and fifteenth amendments extend African Americans' rights?

The Thirteenth, Fourteenth, and Fifteenth Amendments significantly expanded African Americans' rights after the Civil War. The Thirteenth Amendment abolished slavery, ensuring freedom for all enslaved individuals. The Fourteenth Amendment granted citizenship to anyone born in the U.S. and provided equal protection under the law, while the Fifteenth Amendment prohibited denying the right to vote based on race, color, or previous condition of servitude. Together, these amendments laid the foundation for civil rights and aimed to integrate African Americans into the social and political fabric of the nation.