Esperanto vs. Volapük
Get this:
Volapük didn’t die out completely. It has a bit of life today; there are a few online lessons and discussion boards. There is even a Volapük Wikipedia with over 100,000 articles. And its name lives on in the Danish expression det er det rene volapyk – “It’s pure Volapük,” or, in other words “It’s Greek to me.”