When did African American gain true voting rights in America?

Answer 1

The 15th amendment in 1870 gave then voting rights, although poll taxes, literacy tests, and the grandfather clause(says u can't vote if your grandfather was a slave) prevented most blacks in the south from voting for many years after.

Answer 2

African Americans gained true voting rights in America with the passage of the Voting Rights Act of 1965. This legislation enforced the constitutional right to vote for all African Americans by prohibiting discriminatory voting practices, such as literacy tests and poll taxes, that had been used to suppress their vote.