Complex sentence: Apparently so-called Dotty and Dashy Morse were briefly used during World War I, to confuse enemy eavesdroppers, some consider both of these Morse Code variants to be special cases of prosigned Morse.
Split into simpler sentences: Apparently so-called Dotty and Dashy Morse were briefly used during World War I, to confuse enemy eavesdroppers. Some authors consider both of these Morse Code variants to be special cases of prosigned Morse.