Respuesta :
Fifteenth amendment
The 15th Amendment granting African-American men the right to vote was adopted into the U.S. Constitution in 1870.
The 15th Amendment granting African-American men the right to vote was adopted into the U.S. Constitution in 1870.
Answer: fifteenth amendment
Explanation: The 15th Amendment granting African-American men the right to vote was adopted into the U.S. Constitution in 1870.