there's a problem with the 1865 date for the ending of slavery.
Under the convict lease system, blacks might be arrested for petty (or even trumped up) charges, given very long sentences, then brutally worked by the state (think of the famous/infamous chain gangs) or leased out to farms or businesses. The system was frequently criticized, but only began to be dismantled during "the Progressive era". The last state to end this practice (also the first to use it, beginning in 1846) was Alabama. The legislature mandated that it end on June 30, 1928.
Hence, according to some reckonings, the date at which slavery was finally legally abolished was:
July 1, 1928.
at 12:33 AM on Aug. 7, 2010