George Dalgarno (c. 1616 – 1687) was a Scottish intellectual interested in linguistic problems. Originally from Aberdeen, he later worked as a schoolteacher in Oxford in collaboration with John Wilkins, although the two parted company intellectually in 1659.
Dalgarno matriculated at Marischal College, Aberdeen, in 1631. Subsequently he was a schoolteacher in Oxford in the 1650s. In 1657, he was encouraged to upgrade a system of shorthand on which he was working, by Samuel Hartlib, to a more ambitious universal system and he published on the subject later the same year. This effort brought him into contact with members of the Oxford Philosophical Club, one of the precursors of the Royal Society.
Dalgarno was the author of Didascalocophus or the Deaf and Dumb man's tutor (1680), which proposed a totally new linguistic system for use by deaf mutes. The system is still used in the United States.
Dalgarno was also interested in constructing what he called a 'philosophical language', now more usually referred to as universal language. A modern translation of his Ars signorum (Art of Signs, 1661) was published in 2001 in an edition that also includes his autobiography and other manuscript writings.
- David Cram and Jaap Maat, (eds.), George Dalgarno on Universal Language: The Art of Signs (1661), The Deaf and Dumb Man's Tutor (1680), and the Unpublished Papers, Oxford: Oxford University Press, 2001.
- Umberto Eco, The Search for the Perfect Language, Fontana Press, 1997, ISBN 0-00-686378-7, pp. 228–237
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