John Griffith London (born John Griffith Chaney;[1] January 12, 1876 – November 22, 1916)[2][3][4][5] was an American novelist, journalist, and social activist. A pioneer in the world of commercial magazine fiction, he was one of the first writers to become a worldwide celebrity and earn a large fortune from writing. He was also an innovator in the genre that would later become known as science fiction.[6]