The Man That Corrupted Hadleyburg is a piece of short fiction by Mark Twain. It first appeared in Harper's Monthly in December 1899, and was subsequently published by Harper & Brothers in the collection The Man That Corrupted Hadleyburg and Other Stories and Sketches (1900). Some see this story "as a replay of the Garden of Eden story", and associate the corrupter of the town with Satan.
Samuel Langhorne Clemens (November 30, 1835 – April 21, 1910), known by his pen name Mark Twain, was an American writer, humorist, entrepreneur, publisher, and lecturer. He was lauded as the "greatest humorist the United States has produced," and William Faulkner called him "the father of American literature". His novels include The Adventures of Tom Sawyer (1876) and its sequel, the Adventures of Huckleberry Finn (1884), the latter often called "The Great American Novel".