Interlingue ([interˈliŋɡwe] ), originally Occidental ([oktsidenˈtaːl] ), is an international auxiliary language created in 1922 and renamed in 1949. Its creator, Edgar de Wahl, sought to achieve maximal grammatical regularity and natural character. The vocabulary is based on pre-existing words from various languages and a derivational system which uses recognized prefixes and suffixes. Many of Interlingue's derived word forms reflect those common to certain Western European languages, primarily the Romance languages, along with some Germanic vocabulary. Many of its words are formed using de Wahl's rule, a set of rules for regular conversion of all but six verb infinitives into derived words including from Latin double-stem verbs (e.g. vider to see and its derivative vision). The result is a naturalistic and regular language that is easy to understand at first sight for individuals acquainted with certain Western European languages. Readability and simplified grammar, along with the regular appearance of the magazine Cosmoglotta, made Occidental popular in Europe during the years before World War II despite efforts by the Nazis to suppress international auxiliary languages. Occidental survived the war, but the community had been out of touch with the language's creator since 1939. A Baltic German naval officer and teacher from Estonia, de Wahl refused to leave his Tallinn home for Germany, even after his house was destroyed in the 1943 air raids on the city forcing him to take refuge in a psychiatric hospital. Since most of his mail had been intercepted, he died in 1948 largely unaware of developments in the language. The name change to Interlingue took place the following year for two reasons: (1) to demonstrate to the Soviet Union the language's neutrality, and (2) the expectation of a possible union or closer collaboration with the community around Interlingua, a competing naturalistic project under development. Many users were lost following the latter's appearance in 1951, beginning a period of decline until the advent of the Internet.
History and activity
Beginnings Edgar de Wahl announced the creation of Occidental in 1922 with the first issue of the magazine Cosmoglotta, published in Tallinn, Estonia under the name Kosmoglott. Occidental was a product of years of personal experimentation under the name Auli (auxiliary language), which he used from 1906 to 1921 and which later on gained the nickname proto-Occidental. De Wahl, originally a proponent of Volapük and then Esperanto, began creating Occidental after the failed vote to reform Esperanto in 1894. De Wahl corresponded with other language creators, among them the Italian mathematician Giuseppe Peano (creator of Latino sine flexione), from whom he gained an appreciation for its selection of international vocabulary, and Waldemar Rosenberger, the creator of Idiom Neutral.
Upon its announcement in 1922, Occidental was nearly complete. De Wahl had not intended to announce the language for a few years, but decided to accelerate its release after hearing that the League of Nations (LON) had begun an inquiry into the question of an international language. The first known publication in Occidental, a booklet entitled Transcendent Algebra by Jacob Linzbach, appeared shortly before Kosmoglott debuted. Occidental began gathering followers due to its readability, despite a complete lack of grammars and dictionaries. Two years later in 1924, de Wahl wrote that he was corresponding with about 30 people "in good Occidental" despite the lack of learning material, and users of other languages began to join Occidental. The first dictionary, the Radicarium Directiv, a collection of Occidental root words and their equivalents in eight languages, was published the following year. Kosmoglott was also a forum for various other planned languages, while still mainly written in Occidental. The name was changed to Cosmoglotta in 1927 as it began to officially promote Occidental in lieu of other languages, and that January the magazine's editorial and administrative office was moved to the Vienna neighborhood of Mauer, now part of Liesing. Much of the early success for Occidental in this period came from the office's new central location, along with the efforts of Engelbert Pigal, also from Austria, whose article Li Ovre de Edgar de Wahl (The Work of Edgar de Wahl) led to interest in Occidental from users of Ido. Use in France began in 1928, and by the beginning of the next decade the Occidental community was established in Germany, Austria, Sweden, Czechoslovakia and Switzerland.
Vienna period and World War II
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