What major effect did the Fifteenth Amendment have on American society? It ended slavery permanently in the United States. It provided greater access to voting for African Americans. It established equal protection and due process. It lowered the voting age.

The 15th amendment made it illegal to stop an American citizen from voting based on their "race, color, or previous condition of servitude." Essentially, this amendment made it so that all African-American males of voting age (which at this time was 21) could vote in elections.

~Real

hello there the answer is a

sorry if i am wrong hope that : )

d) he bring down boss tweed and tammany hall.