"It is hardly an exaggeration to say that oral teachers and sign teachers found it difficult to sit down in the same room without quarreling, and there was intolerance upon both sides. To say 'oral method' to a sign teacher was like waving a red flag in the face of a bull, and to say 'sign language' to an oralist aroused the deepest resentment."
Alexander Graham Bell was a Scottish-born inventor and engineer associated with the development of practical telephony. He also worked on communication systems for the deaf and on aeronautics and hydrofoils. He remains a central historical figure in communications technology.