Idiom Neutral is an international auxiliary language, published in 1902 by the International Academy of the Universal Language (Akademi Internasional de Lingu Universal) under the leadership of Waldemar Rosenberger, a St. Petersburg engineer.

History[edit]

The Academy had its origin as the Kadem bevünetik volapüka (literally 'International Academy of the World Language') at a congress in Munich in August 1887, was set up to conserve and perfect the auxiliary language Volapük. Under Rosenberger, who became the Academy’s director in 1892, the group began to make considerable changes in the grammar and vocabulary of Volapük, changing its nature into an entirely different language. The vocabulary was almost completely replaced by words more closely resembling those used in Western European languages, and a number of grammatical forms unfamiliar to Western Europeans were discarded. It was understood that the changes effectively resulted in the creation of a new language, which was named Idiom Neutral (which means “the neutral idiom” or “the neutral language”).

The name of the Academy was changed to Akademi Internasional de Lingu Universal in 1898 and the circulars of the Academy were written in the new language from that year. Those who continued to use Volapük re-formed the International Academy of Volapük, retaining its name (with a spelling change) as Kadäm Bevünetik Volapüka.

Dictionaries of Idiom Neutral including an outline of the grammar were published in several European languages in 1902 and 1903.

The language, sometimes referred to as “Neutral” or “the Neutral language” by English-speaking writers, created interest among international language enthusiasts at the time. Rosenberger published a periodical in the language called Progres. In 1907 Neutral was one of the projects considered by a committee of scholars which met in Paris to select an international auxiliary language (what the committee actually decided upon is disputed; see Ido and its external links for more information).

In 1908 the Akademi which had created Idiom Neutral effectively chose to abandon it in favor of Latino sine flexione, a simplified form of Latin developed by Italian mathematician Giuseppe Peano. Peano was appointed the director of the Akademi, and its name was changed to Academia pro Interlingua. Peano's language was also called Interlingua, not to be confused with the better-known Interlingua presented in 1951 by the International Auxiliary Language Association (IALA).

In 1912 Rosenberger published a reformed version of Neutral called Reform-Neutral.