Today I saw a man on television ( Man, sounds old school ).
He is one of the last of 20-30 people that speaks a language that was created for all of us.
I got triggered by his story and thought to search and post about this language....
Volapük
Volapük (pronounced [volaˈpyk], 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.
According to his own report, the idea of an international language arose out of a conversation he had with one of his parishioners, a semi-literate German peasant whose son had emigrated to America and could no longer be reached by mail because the United States Postal Service couldn't read the father's handwriting.
Volapük conventions took place in 1884 (Friedrichshafen), 1887 (Munich), and 1889 (Paris).
The first two conventions used German, and the last conference used only Volapük.
In 1889, there were an estimated 283 clubs, 25 periodicals in or about Volapük, and 316 textbooks in 25 languages.
Today there are an estimated 20-30 Volapük speakers in the world.
Schleyer adapted the vocabulary mostly from English, with a smattering of German and French. Often modified, it is beyond easy recognizability.
For instance, "vol" and "pük" are derived from the English words "world" and "speak".
It seems to have been Schleyer's intention, however, to deform its loan words in such a way that they would be hard to recognise and thus lose their ties to the language(s)—-and, by extension, nations—-they came from.
Compare the common criticism that Esperanto and Interlingua are much easier to learn for Europeans than for those with non-European native languages. R was not included in the initial set aiming to ease the pronunciation for Chinese speakers. However other phonemes difficult for non-Europeans (such as ö and ü) remain.
Then the internet;
Volapuk and Translit have been in use since the early days of the Internet to write e-mail messages and other texts in Russian where the support of Cyrillic fonts was limited: either the sender did not have a keyboard with Cyrillic letters or the receiver did not necessarily have Cyrillic screen fonts.
In the early days, the situation was aggravated by a number of mutually incompatible computer encodings for the Cyrillic alphabet, so that the sender and receiver were not guaranteed to have the same one. Also, the 7-bit character encoding of the early days was an additional hindrance.
Some Russian e-mail providers even included Volapuk encoding in the list of available options for the e-mails routed abroad, e.g.,
Example
COBETCKIJ COIO3 ("advanced" volapuk)
СОВЕТСКИЙ СОЮЗ (Cyrillic)
SOVETSKIY SOYUZ (transliteration)
Soviet Union (English)
A constructed world
A constructed world (also conworld or sub-creation) is an imaginary world, usually associated with a fictional universe, built via a world building or conworlding process.
A constructed world typically has a number of constructed cultures and constructed languages associated with it. Worlds are often created for a novel, video game, or role-playing game, but sometimes for personal enjoyment or its own sake (see geofiction).
I think maybe Space Collective is close to becoming a constructed space...the constructed language is still missing... any volunteers?
Volapük