Historically speaking, what is the oldest known constructed language that we are able to determine with historical evidence?

  • 3
    That really depends on how you define conlang (see this answer)
    – CHEESE
    Feb 8, 2018 at 0:29

1 Answer 1


The oldest language whose creator set out to actually invent a language (as opposed to Pāṇini, who wanted to create a classical standard out of an already extant language) was probably Lingua Ignota. The formerly brilliant Langmaker website had an article on it (now accessible through the Wayback Machine). It was made in the twelfth century, predating another early conlang, Balaibalan, which was made somewhen between the fourteenth and sixteenth centuries.

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