【How-to】Why did mark twain use a pseudonym

Mark Twain, pseudonym of Samuel Langhorne Clemens, (born November 30, 1835, Florida, Missouri, U.S.—died April 21, 1910, Redding, Connecticut), American humorist, journalist, lecturer, and novelist who acquired international fame for his travel narratives, especially The Innocents Abroad (1869), Roughing It (1872), and …