Final answer:
The Constitution guaranteed African Americans freedom from enslavement through the Thirteenth Amendment, recognition as citizens and equal protection under the law through the Fourteenth Amendment, and equal voting rights through the Fifteenth Amendment.
Step-by-step explanation:
In 1865, the Thirteenth Amendment to the United States Constitution was ratified. This amendment guaranteed freedom from enslavement or involuntary servitude for African Americans. It abolished slavery and ended the institution of slavery in the United States.
The Fourteenth Amendment, ratified in 1868, granted African Americans recognition as citizens and provided equal protection under the law. This amendment aimed to ensure that all citizens, regardless of race, were treated equally by the government.
While the Constitution did not explicitly guarantee voting rights for African Americans until the Fifteenth Amendment was ratified in 1870, the Fourteenth Amendment laid the foundation for equal voting rights by establishing equal protection under the law.
Learn more about Rights of African Americans in the United States