Unua Libro
Book by Ludwik Lejzer Zamenhof
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... Wikipedia
Originally published: July 26, 1887
Author: Ludwik Lejzer Zamenhof
Original language: Esperanto
Audio read by: Nicholas James Bridgewater (LibriVox)
Original title: Международный языкъ
Translation: Unua Libro at Wikisource