Publication of the Unua Libro, founding the Esperanto movement.

Unua Libro

1887 book by L. L. Zamenhof about Esperanto

Dr. Esperanto's International Language, commonly referred to as Unua Libro, is an 1887 book by Polish ophthalmologist L. L. Zamenhof, in which he first introduced and described the constructed language Esperanto. First published in Russian on July 26 [O.S. July 14] 1887, the…