From 1890 to 1908, state legislatures in the South disenfranchised most blacks and many poor whites through rejecting them for voter registration and voting: making voter registration more difficult by providing more detailed records, such as proof of land ownership or literacy tests administered by white staff at poll stations. African-American community leaders, who had achieved brief political success during the Reconstruction era and even into the 1880s, lost gains made when their voters were excluded from the political system. Historian Rogers Smith noted on the subject that "lawmakers frequently admitted, indeed boasted, that such measures as complex registration rules, literacy and property tests, poll taxes, white primaries, and grandfather clauses were designed to produce an electorate confined to a white race that declared itself supreme", notably rejecting the 14th and 15th Amendments to the American Constitution.