Twain, Mark
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
TWAIN, MARK pseud. of Samuel Langhorne Clemens, 1835 1910...Florida, Mo. As humorist, narrator, and social observer, Twain is unsurpassed in American literature. His novel The Adventures...became a Mississippi River pilot hence his pseudonym, "Mark Twain," which was the river call for a depth of water of two fathoms...