Waldemar Rosenberger

Waldemar Rosenberger (also: Vladimir Karlovich Rozenberger; * 1849, † 1918) was a German-born railway engineer and creator of the plan language Idiom Neutral from Saint Petersburg ( Russia).

Rosenberger was born 1849 in Saint Petersburg. He studied after graduating from high school engineering in Saint Petersburg. He worked as a railway engineer from 1873 until his retirement in 1909 in the Russian civil service.

In 1886, he learned the language Volapük plan. When Volapük Congress in Munich in 1887 Rosenberger was immediately elected to the Volapük Academy as a representative of Russia. In 1893 he became director of the Academy and from 1898 Deputy Director.

As Volapük by the advent of the planned language Esperanto rapidly lost its popularity, the Academy tried to reform the Volapük led by Rosenberger.

However, the result of this reform effort was in 1902 with an entirely new plan Idiom Neutral language. However, the Volapükbewegung not accept this reform. Idiom Neutral was the attempt to reform the Volapük to a naturalistic planned language. From 1906 to 1915 Rosenberg published the magazine Progres in Idiom Neutral.

He revised Idiom Neutral, however, one more time, and published in 1912 the language design reform neutral, but as Idiom Neutral won no great following.

Rosenberger died in 1918 from the effects of pneumonia in Petrograd.