The Fifteenth Amendment to the Constitution, securing African American men's right to vote, was ratified February 3, 1870.
Explore its impact across the US, North and South, in our Primary Source Set. The set includes this carte-de-visite of Octavius Catto, a Philadelphia community leader who was killed for his role in organizing black voters following the adoption of the fifteenth amendment.
This image comes from the collection of the National Portrait Gallery via Smithsonian ( @smithsonian ).















