Alphonse Matejka (9 January 1902 – 27 October 1999) was a Swiss exports specialist and proponent of international auxiliary language. Born in St. Gallen to a Czech father and Swiss mother, he worked in the textiles and watchmaking industries, and lived much of his life in La Chaux-de-Fonds. Matejka is best known for his work in the international language movement; first supporting Ido, and later Occidental, he led numerous organisations in the fields, and authored several books teaching these languages. Matejka also helped to found the Center for Documentation and Study about the International Language.
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