Why was The Adventures Huckleberry Finn banned??

The Concord public library committee deserve well of the public by their action in banishing Mark Twain's new book, "Huckleberry Finn," on the ground that it is trashy and vicious. It is time that this influential pseudonym should cease to carry into homes and libraries unworthy productions. Mr. Clemens is a genuine and powerful humorist, and with a bitter vein of satire on the weaknesses of humanity which is sometimes wholesome, sometimes only grotesque, but in certain of his works degenerates into a gross trifling with every fine feeling. The trouble with Mr. Clemens is that he has no reliable sense of propriety. His notorious speech at an Atlantic dinner, marshaling Longfellow and Emerson and Whittier in vulgar parodies in a Western miner's cabin, illustrated this, but not in much more relief than the "Adventures of Tom Sawyer" did, or than these Huckleberry Finn stories do. The advertising samples of this book, which have disfigured the Century magazine, are enough to tell any reader how offensive the whole thing must be. They are no better in tone than the dime novels which flood the blood-and-thunder reading population. Mr. Clemens has made them smarter, for he has an inexhaustible fund of "quips and cranks and wanton wiles," and his literary skill is, of course, superior, but their moral level is low, and their perusal cannot be anything less than harmful.

A History of Huckleberry Finn & Censorship"The Adventures of Huckleberry Finn" was first published in 1884. Mark Twain's novel was controversial from the start. In 1885, Concord Public Library banned the book. Mark Twain wrote to Charles Webster on March 18, 1885: "The Committee of the Public Library of Concord, Mass., have given us a rattling tip-top puff which will go into every paper in the country. They have expelled Huck from their library as 'trash and suitable only for the slums.' That will sell 25,000 copies for us sure." In 1902, the Brooklyn Public Library banned "The Adventures of Huckleberry Finn" with the statement that "Huck not only itched but he scratched," and that he said "sweat" when he should have said "perspiration."Why Was Mark Twain's "Adventures of Huckleberry Finn" Banned?In general, the debate over Twain's "Huckleberry Finn" has centered around the language of the book, which has been objected to on social grounds.
Yielding to public pressure, some textbook publishers have substituted "slave" or "servant" for the term that Mark Twain uses in the book, which has been considered derogatory to African Americans.