The 15th Amendment to the United States Constitution was ratified on February 3, 1870, and it granted African American men the right to vote. The amendment states that the right to vote cannot be denied based on race, color, or previous condition of servitude.

This was a significant milestone in Black history as it represented a major step towards achieving racial equality and civil rights for African Americans. However, despite the passage of the 15th Amendment, many states in the South implemented various tactics such as literacy tests, poll taxes, and intimidation to disenfranchise Black voters.

It wasn't until the Civil Rights Movement of the 1960s that significant progress was made in securing and protecting the voting rights of African Americans. Key figures such as Martin Luther King Jr., Rosa Parks, and John Lewis played crucial roles in advocating for voting rights for Black Americans.

Overall, the 15th Amendment remains a pivotal moment in Black history and continues to be a cornerstone of the ongoing struggle for civil rights and equality in America.