Which amendment allows African American males to vote?

The Fifteenth Amendment specifically addresses the voting rights of citizens by prohibiting states from denying the right to vote based on "race, color, or previous condition of servitude." Ratified in 1870, this amendment was a significant milestone in the struggle for civil rights, particularly for African American males, as it formally recognized their right to participate in the electoral process.

In contrast, the Nineteenth Amendment, ratified in 1920, granted women the right to vote, ensuring gender equality in voting but not specifically addressing the rights of African American males. The Twenty-fourth Amendment, ratified in 1964, prohibited poll taxes in federal elections, which were often used to disenfranchise voters, particularly African Americans and poor individuals, but it did not specifically grant voting rights. Lastly, the Twenty-sixth Amendment, ratified in 1971, lowered the voting age to 18 but did not pertain to racial discrimination in voting.

Thus, the Fifteenth Amendment is the key piece of legislation that specifically allows African American males to vote, making it the correct answer.