Esperanto, introduced in the late 19th Century, was an amalgamation of many languages and dialects, intended to replace English as the default international language. Surprisingly, there are still about 2,000,000 speakers. But I doubt that it will ever catch on, like Klingon and Dothraki. Around here at the University of Tennessee, student diversity activists have attempted to recommend "gender-neutral pronouns" to erase gender-specific ones, such as he/she with words like "xe." The state legislature removed the Diversity Department's funding as a result.