Further development occurred to create an alternate international language. It began in 1935 when International 2-letter correspondence symbols were revised and reissued in 1935 as International Symbolic Script. Another version called Word Speedwords was published between 1941–1945 (page 18 of Teach Yourself Dutton Speedwords). There is a booklet of the same name published in 1946 which appears to contain 100 Speedwords. Despite attempts by Dutton to popularise World Speedwords it was not adopted as an international language. The intention expressed on page 88 in Teach Yourself Dutton Speedwords (1951) to produce language-specific versions of the Speedwords course, did not eventuate. It appears another variation called Dutton Youth Speedwords was published in 1943. Both World Speedwords and Speedwords used words from Flemish (Dutch), French, German, Greek, Latin, Portuguese, Scandinavia, Slav, and Spanish are sources for both World Speedwords and Speedwords (According to pages 8, and 88 of Teach Yourself Dutton Speedwords, 1951 and 1971). By 1946 it had been renamed Speedwords. By 1951 Dutton conceded that Speedwords was ideal for individual note taking and note making (page 7 Teach Yourself Dutton Speedwords) and made some variations to Word Speedwords to adapt it for the new purpose (page 8 Teach Yourself Dutton Speedwords). His audience is, therefore, students and time-poor people seeking to make the best use of their time or people who incur high costs in communication. He comments that he hopes that "the student who has worked through the present course will look to this wide horizon (page 88) that is, international communication so Dutton always maintained his duality of objectives and functions. It has been revived from time to time in its own right as well as with adaptations. The Dutton Society (no longer extant) promoted Speedwords. Some time management writers and computer specialists who describe online applications including e-mail and situations where communication is either slow or expensive. Foreign-language versions of Speedwords In Teach Yourself Dutton Speedwords (page 88), Dutton says that "It is intended to publish this Speedwords course in all the major languages of both hemispheres." This did not occur. It is unclear whether the impediment was (a) problems that equivalents (including the use of suffixes) were not suitable in foreign languages, (b) authors of the foreign-language versions of Speedwords were not forthcoming, (c) lack of a publisher, or (d) anomalies and difficulties became apparent when Speedwords was translated, making the English- and foreign-language version no