Which amendment to the us constitution extended the right to vote to african men?

The 15th Amendment to the U.S. Constitution granted African American men the right to vote by declaring that the "right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude."

Explanation:

john adams was the 2nd president of the united states.

explanation:

the awenser wuold be slaves