Léon Bollack was a rich French trader who created The Blue Language or Bolak

Bolak (Blue Language)

Bolak is a constructed language that was invented by Léon Bollack. The name of the language means both `blue language' and `ingenious creation' in the language itself.-History:...

 in 1899. After a few years, he joined the Ido

Ido

Ido is a constructed language created with the goal of becoming a universal second language for speakers of different linguistic backgrounds as a language easier to learn than ethnic languages...

 movement; it is possible that the blue color of the Ido flag was his proposal. He uttered the phrase: "It seems to me that both the Esperanto

Esperanto

is the most widely spoken constructed international auxiliary language. Its name derives from Doktoro Esperanto , the pseudonym under which L. L. Zamenhof published the first book detailing Esperanto, the Unua Libro, in 1887...

 and Volapük

Volapük

Volapük is a constructed language, created in 1879–1880 by Johann Martin Schleyer, a Roman Catholic priest in Baden, Germany. Schleyer felt that God had told him in a dream to create an international language. Volapük conventions took place in 1884 , 1887 and 1889 . The first two conventions used...

 poets are worth only to be the objects of ridicule."

Bollack inspired H.G. Wells who mentioned him in his book A Modern Utopia

A Modern Utopia

A Modern Utopia is a work of fiction by H. G. Wells.* H. G. Wells's proposal for social reform was the formation of a world state, a concept that increasingly occupied him throughout the remainder of his life...

.
He died in 1925.

Books

• La Langue Bleue Bolak: langue internationale pratique, Paris: 1899 (480+ p.).

A*bridged grammar of the Blue Language [translated by Tischer], Paris: Pres. Dupont, 1900 (64 p.).

• Premier vocabulaire de la langue bleue Bolak, Paris: 1902 (90+ p.).
  • Comment tuer la guerre - La loi mondiale de boycottage douanier. Rapport ... Paris, 1912.
• L'emploi rationnel de la plume des oiseaux sauvages. Réglementation, oui ; prohibition, non.. Publ. du. Comite d’Ornithologie Economique, 1914.

Articles

• La Langue Française en l'an 2003, par Leon Bollack, in La Revue, 15 Juillet, 1903.