Regarding the discussion on your site of Mark Twain being "racist"--I think Dick Gregory's explanation is brilliant:
The key point is that Huck Finn was published in 1884, or long after Lincoln and the Civil War. So Gregory is flatly wrong in saying Twain's book had an effect before Lincoln.
The only benefits Gregory attributed to Huck Finn were calling Jim by name and having him talking with Huck as an equal. That might've been a bit innovative in the mid-19th century South, when slavery was the law of the land. But 20 years after slavery was abolished, when blacks were supposedly equal?
Here are some African-American firsts that happened contemporaneously with Huck Finn's mid-century timeframe:
In short, the book's fictional "advances" were trivial compared to the historic advances in the real world. Twain did nothing extraordinary by pointing out the evils of slavery 20 years after the fact.
Nice try to defend Twain's racism, friend, but I suggest you try again. Better luck next time.
For more on the subject, see Mark Twain, Indian Hater.
P.S. For all I know, Twain was the first writer to give an Indian a Christian name ("Injun Joe" in Tom Sawyer). And the first to portray an urban Indian--one completely divorced from his tribal upbringing. Should we give him credit even though Injun Joe was a violent criminal? No, I don't think so.