Samuel Langhorne Clemens (November 30, 1835 - April 21, 1910), better known by his pen name Mark Twain, was an American author and humorist. He wrote The Adventures of Tom Sawyer (1876) and its sequel, Adventures of Huckleberry Finn (1885), the latter often called "The Great American Novel." Twain grew up in Hannibal, Missouri, which provided the setting for Huckleberry Finn and Tom Sawyer. After an apprenticeship with a printer, he worked as a typesetter and contributed articles to the newspaper of his older brother, Orion Clemens.