| Proto-Esperanto | |
|---|---|
| Lingwe uniwersala, Lingvo universala | |
| Created by | L. L. Zamenhof |
| Date | 1878–1881 |
| Setting and usage | international auxiliary language |
| Users | None |
| Purpose | Constructed language
|
| Latin | |
| Language codes | |
| ISO 639-3 | – |
| Glottolog | None |
| Part of a series on |
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Proto-Esperanto (Esperanto: Pra-Esperanto) is the modern term for any of the stages in the evolution of L. L. Zamenhof's language project, prior to the publication of Unua Libro in 1887.