Mark Twain
Samuel Langhorne Clemens (November 30, 1835 – April 21, 1910) known by his pen name Mark Twain, was an American writer, humorist and entrepreneur. He was lauded as the "greatest humorist the United States has produced. His novels include The Adventures of Tom Sawyer and its sequel, Adventures of Huckleberry Finn, the latter of which has often been called the "Great American Novel". Twain was born shortly after an appearance of Halley's Comet, and he predicted that he would "go out with it" as well; he died the day after the comet made its closest approach to the Earth.