Samuel Langhorne Clemens (November 30, 1835 – April 21, 1910), better known by the pen name Mark Twain, was an American author and humorist, who born in Missouri, but spent significant periods of his life in California, upstate New York, and Europe. Twain is most noted for his novels The Adventures of Tom Sawyer and The Adventures of Huckleberry Finn, but also wrote works of science fiction (Tom Sawyer Abroad) and/or fantasy (A Connecticut Yankee in King Arthur's Court; The Mysterious Stranger). Mark Twain's witticisms are extensively quoted in the popular culture of English-speaking countries.

Twain had much tragedy in his personal life. His wife and three of his four children predeceased him, and his finances were troubled during his last years.

Samuel Clemens in RiverworldEdit

Clemens1850Samuel Clemens became one of the most influential figures in the history of Riverworld.