The 15th Amendment banned racial discrimination in voting. In 1869, Congress debated several drafts—some of which provided more extensive protections. Even as each house passed broader proposals, Congress settled on language that only focused on voter discrimination based on race. The 15th Amendment was passed by Congress on February 26, 1869, and ratified by the states on February 3, 1870.
Special thanks to Kurt Lash from the University of Richmond School of Law for sharing his research and expertise. Kurt Lash, The Reconstruction Amendments: Essential Documents (University of Chicago Press, 2019).