Complex sentence: The Chicago Tribune, in 1890, published an article about the trick, written by a journalist using the false name of Fred S. Ellmore--a story which was repeated in several other newspapers without its authenticity first being verified.
Split into simpler sentences: The Chicago Tribune, in 1890, published an article about the trick, written by a journalist using the false name of Fred S. Ellmore. 'Elmore's' story was repeated in several other newspapers without its authenticity first being verified.