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The International Phonetic Alphabet was created soon after the International Phonetic Association was established in the late 19th century. It was intended as an international system of phonetic transcription for oral languages, originally for pedagogical purposes. The Association was established in Paris in 1886 by French and British language teachers led by Paul Passy. The prototype of the alphabet appeared in Phonetic Teachers' Association (1888b). The Association based their alphabet upon the Romic alphabet of Henry Sweet, which in turn was based on the Phonotypic Alphabet of Isaac Pitman and the Palæotype of Alexander John Ellis.
The alphabet has undergone a number of revisions during its history, the most significant being the one put forth at the Kiel Convention in 1989. Changes to the alphabet are proposed and discussed in the Association's organ, Journal of the International Phonetic Association, previously known as Le Maître Phonétique and before that as The Phonetic Teacher, and then put to a vote by the Association's Council.
The extensions to the IPA for disordered speech were created in 1990, with its first major revision approved in 2016.