Twain was an American author who, as a humorist, narrator, and social observer, is unsurpassed in American literature. Born Samuel Langhorne Clemens, Twain grew up in a port town on the Mississippi River and eventually became a river pilot. He first won fame with the comic masterpiece “The Celebrated Jumping Frog of Calaveras County.” His 1885 novel The Adventures of Huckleberry Finn has been called the first modern American novel. According to Twain, how did he acquire his pen name? Discuss