Dr. Esperanto's International Language, commonly referred to as Unua Libro, is an 1887 book by L. L. Zamenhof, in which he first introduced and described the constructed language Esperanto. First publ
Dr. Esperanto's International Language (1889 Geoghegan translation)
The original Russian publication of Unua Libro and the 1887 Polish, French, and German translations
Esperanto is the world's most widely spoken constructed auxiliary language. Created by L. L. Zamenhof in 1887 as 'the International Language', it is intended to be a universal second language for inte
Unua Libro
…commonly referred to as Unua Libro (First Book), is an 1887 book by 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 publication of Unua Libro marks the formal beginning of the Esperanto movement. Writing…
7th Esperanto congress, Antwerp, August 1911
The Republic of Rose Island in the Adriatic Sea used Esperanto as its official language in 1968; it has since been demolished
Esperanto books at the World Esperanto Congress, Rotterdam 2008