In what year did African Americans gain the right to vote through the 15th amendment?

The 15th Amendment to the United States Constitution, which granted African American men the right to vote, was ratified in 1870. This amendment was a significant milestone in the struggle for civil rights, as it explicitly prohibited the federal and state governments from denying a citizen the right to vote based on "race, color, or previous condition of servitude." By 1870, following the Civil War and the abolition of slavery, this amendment aimed to enfranchise African American males, although various discriminatory practices would continue to impede their voting rights for many years to come. This historical context underscores why the year 1870 is pivotal in the timeline of voting rights for African Americans.