Although without formal music training, Scott Joplin still went on to become synonymous with ragtime. He was one of the founders of jazz, this country's original musical art form. Joplin began his musical career playing at vaudeville houses in St. Louis. By 1900, he was married, teaching, and composing. His Original Rags sold more than one million copies. Among his other works of note were Maple Leaf Rag and The Entertainer.